Quick view Details sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings MSRP: Now: $35.00 View Details Compare Quick view Details sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 MSRP: Now: $135.00 View Details Compare Quick view Details sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3130-kp KP31 Trigger Pack MSRP: Now: $42.50 Add to Cart Compare Quick view Details sku: 3133-36 Suomi 36 rd stick magazine MSRP: Now: $28.50 View Details Compare Quick view Details sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring MSRP: Now: $5.20 Add to Cart Compare Quick view Details sku: 3110-a-.001 KP31 Barrel Shim - .001 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production MSRP: Now: $10.00 Add to Cart Compare Quick view Details sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" MSRP: Now: $155.00 Choose Options Compare Quick view Details sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: 011111-11 Suomi Rear Cap Mount with Buffer MSRP: Now: $12.00 Add to Cart Compare Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 MSRP: Now: $135.00 View Details Compare Quick view Details sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3130-kp KP31 Trigger Pack MSRP: Now: $42.50 Add to Cart Compare Quick view Details sku: 3133-36 Suomi 36 rd stick magazine MSRP: Now: $28.50 View Details Compare Quick view Details sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring MSRP: Now: $5.20 Add to Cart Compare Quick view Details sku: 3110-a-.001 KP31 Barrel Shim - .001 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production MSRP: Now: $10.00 Add to Cart Compare Quick view Details sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" MSRP: Now: $155.00 Choose Options Compare Quick view Details sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: 011111-11 Suomi Rear Cap Mount with Buffer MSRP: Now: $12.00 Add to Cart Compare Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 MSRP: Now: $135.00 View Details Compare Quick view Details sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3130-kp KP31 Trigger Pack MSRP: Now: $42.50 Add to Cart Compare Quick view Details sku: 3133-36 Suomi 36 rd stick magazine MSRP: Now: $28.50 View Details Compare Quick view Details sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring MSRP: Now: $5.20 Add to Cart Compare Quick view Details sku: 3110-a-.001 KP31 Barrel Shim - .001 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production MSRP: Now: $10.00 Add to Cart Compare Quick view Details sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" MSRP: Now: $155.00 Choose Options Compare Quick view Details sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: 011111-11 Suomi Rear Cap Mount with Buffer MSRP: Now: $12.00 Add to Cart Compare Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3130-kp KP31 Trigger Pack MSRP: Now: $42.50 Add to Cart Compare Quick view Details sku: 3133-36 Suomi 36 rd stick magazine MSRP: Now: $28.50 View Details Compare Quick view Details sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring MSRP: Now: $5.20 Add to Cart Compare Quick view Details sku: 3110-a-.001 KP31 Barrel Shim - .001 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production MSRP: Now: $10.00 Add to Cart Compare Quick view Details sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" MSRP: Now: $155.00 Choose Options Compare Quick view Details sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: 011111-11 Suomi Rear Cap Mount with Buffer MSRP: Now: $12.00 Add to Cart Compare Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3130-kp KP31 Trigger Pack MSRP: Now: $42.50 Add to Cart Compare Quick view Details sku: 3133-36 Suomi 36 rd stick magazine MSRP: Now: $28.50 View Details Compare Quick view Details sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring MSRP: Now: $5.20 Add to Cart Compare Quick view Details sku: 3110-a-.001 KP31 Barrel Shim - .001 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production MSRP: Now: $10.00 Add to Cart Compare Quick view Details sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" MSRP: Now: $155.00 Choose Options Compare Quick view Details sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: 011111-11 Suomi Rear Cap Mount with Buffer MSRP: Now: $12.00 Add to Cart Compare Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3133-36 Suomi 36 rd stick magazine MSRP: Now: $28.50 View Details Compare Quick view Details sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring MSRP: Now: $5.20 Add to Cart Compare Quick view Details sku: 3110-a-.001 KP31 Barrel Shim - .001 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production MSRP: Now: $10.00 Add to Cart Compare Quick view Details sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" MSRP: Now: $155.00 Choose Options Compare Quick view Details sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: 011111-11 Suomi Rear Cap Mount with Buffer MSRP: Now: $12.00 Add to Cart Compare Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring MSRP: Now: $5.20 Add to Cart Compare Quick view Details sku: 3110-a-.001 KP31 Barrel Shim - .001 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production MSRP: Now: $10.00 Add to Cart Compare Quick view Details sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" MSRP: Now: $155.00 Choose Options Compare Quick view Details sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: 011111-11 Suomi Rear Cap Mount with Buffer MSRP: Now: $12.00 Add to Cart Compare Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3110-a-.001 KP31 Barrel Shim - .001 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production MSRP: Now: $10.00 Add to Cart Compare Quick view Details sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" MSRP: Now: $155.00 Choose Options Compare Quick view Details sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: 011111-11 Suomi Rear Cap Mount with Buffer MSRP: Now: $12.00 Add to Cart Compare Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick MSRP: Now: $4.85 Add to Cart Compare Quick view Details sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production MSRP: Now: $10.00 Add to Cart Compare Quick view Details sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" MSRP: Now: $155.00 Choose Options Compare Quick view Details sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: 011111-11 Suomi Rear Cap Mount with Buffer MSRP: Now: $12.00 Add to Cart Compare Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production MSRP: Now: $10.00 Add to Cart Compare Quick view Details sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" MSRP: Now: $155.00 Choose Options Compare Quick view Details sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: 011111-11 Suomi Rear Cap Mount with Buffer MSRP: Now: $12.00 Add to Cart Compare Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" MSRP: Now: $155.00 Choose Options Compare Quick view Details sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: 011111-11 Suomi Rear Cap Mount with Buffer MSRP: Now: $12.00 Add to Cart Compare Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: 011111-11 Suomi Rear Cap Mount with Buffer MSRP: Now: $12.00 Add to Cart Compare Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) MSRP: Now: $220.00 View Details Compare Quick view Details sku: 011111-11 Suomi Rear Cap Mount with Buffer MSRP: Now: $12.00 Add to Cart Compare Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 011111-11 Suomi Rear Cap Mount with Buffer MSRP: Now: $12.00 Add to Cart Compare Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3110-a KP31 Barrel Shim - .003 thick MSRP: Now: $2.75 Add to Cart Compare Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger MSRP: Now: $14.50 Add to Cart Compare Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3134 Suomi Drum Tool MSRP: Now: $4.50 Add to Cart Compare Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3128 M31 Rear Cap MSRP: Now: $5.00 Add to Cart Compare Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3125 M31 Rear Sight MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3120 M31 Charging Handle Assembly MSRP: Now: $18.50 Add to Cart Compare Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view Details sku: 3108 M31/37 Mainspring MSRP: Now: $10.00 Add to Cart Compare Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: BRP-O-CML SUOMI M31 & Swedish M37 Coffin Mag Loader - Finnish Markings Original Item Actual item pictured Condition as shown Includes: 1 x Coffin Mag Loader with Finnish "SA" Markings MSRP: Now: $35.00 View Details Compare Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3110-shroudshim.01 KP31 Shroud Shim - .01" thick Copied from original parts and made from stainless steel. Thickness .01" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3110-16-SA KP31 Suomi SEMI AUTO HEADSPACE pattern 9mm Barrel 16" Threaded 1/2-28 16" barrel for Semi Auto KP31. Works with slant pattern KP31 shroud. Will work with compensated shroud if the exit hole is opened to .635". HEADSPACE on Closed Bolt Semi Auto Guns vs Open Bolt / Fixed Firing Pin Blow Back... MSRP: Now: $135.00 View Details Compare Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3110-shshim-.002 KP31 Shroud Shim - .002" thick Copied from original parts and made from stainless steel. Thickness .002" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3130-kp KP31 Trigger Pack M31 / KP31 Trigger Pack NOT FOR SEMI AUTO US-MADE GUNS. MSRP: Now: $42.50 Add to Cart Compare Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3133-36 Suomi 36 rd stick magazine 36rd original Finnish Suomi drum. Works with M31/KP31, KP44, M37/39, M45. (not for sale where prohibited) Excellent condition MAGAZINE SHIPPING RESTRICTIONS California Restrictions: 10 rounds, unless you can... MSRP: Now: $28.50 View Details Compare Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3130spring Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring M31 Trigger Pack Sear Spring for original KP31 and Stemple U series guns with Suomi pattern trigger packs MSRP: Now: $5.20 Add to Cart Compare Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3110-a-.001 KP31 Barrel Shim - .001 thick Copied from original parts and made from stainless steel. Thickness .001" These are the most thin we could make. They are excellent for fine tuning your barrel to trunion to shroud fit. This part tightens the barrel... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3110-shroudshim.005 KP31 Shroud Shim - .005" thick Copied from original parts and made from stainless steel. Thickness .005" This part tightens the barrel jacket to receiver fit by 'shimming' the rear of the barrel shroud to receiver/trunion. This is a very useful part for... MSRP: Now: $4.85 Add to Cart Compare Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3108-N Mainspring STG U9, 34k, & Suomi - New Production New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k MSRP: Now: $10.00 Add to Cart Compare Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3110-12.875 Stemple STG 9mm Barrel 12.75" 12.75" barrel for BRP Stemple Takedown Guns. Extractor Location The extractor relief on this barrel is setup for the BRP-Stemple extractors and would have to be enlarged to accommodate the KP31 extractor for full auto and semi auto... MSRP: Now: $155.00 Choose Options Compare Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: U-M31CP STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL) M31 Compensated Barrel Shroud with new parkerized finish for use with 12.875" 9mm barrels. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and original KP31 SMGs. *** 16" barrels wil... MSRP: Now: $220.00 View Details Compare Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: U-M31P STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL) M31 Slant Barrel Shroud with new parkerize finish for use with 12.875" and 16" 9mm barrels. The 16" barrels are threaded 1/2-28. Picatinny rail mount on bottom of shroud. Compatible with all Universal pattern Stemple guns and... MSRP: Now: $220.00 View Details Compare Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 011111-11 Suomi Rear Cap Mount with Buffer Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver. This is the setup we used to mount the buffer in our early STG34k guns. This assembly includes: - 1 M31 buffer - 1 BRP rear tab: this part... MSRP: Now: $12.00 Add to Cart Compare Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3110-a KP31 Barrel Shim - .003 thick Copied from original parts and made from stainless steel. Thickness .003" This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel. This is a very useful part for accurizing you gun or just fixing... MSRP: Now: $2.75 Add to Cart Compare Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3137 Suomi KP31 / Swed M37 Screws: Stock and Trigger Includes the trigger screw and trigger screw keeper, and stock/tang screw MSRP: Now: $14.50 Add to Cart Compare Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3134 Suomi Drum Tool Fitted tool for the Suomi Drum Feeder Arm for 1/4" hex drive tool. It allows you to remove the arm for retensioning the drum. MSRP: Now: $4.50 Add to Cart Compare Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3128 M31 Rear Cap Original Rear Cap in Excellent Condition MSRP: Now: $5.00 Add to Cart Compare Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3125 M31 Rear Sight Original Suomi - Tikka mfg 500m tangent MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected × OK
Quick view sku: 3120 M31 Charging Handle Assembly Original M31 Charging Assembly: includes; handle, spring, bolt catch, and pin MSRP: Now: $18.50 Add to Cart Compare Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected
Quick view sku: 3108 M31/37 Mainspring Original Mainspring MSRP: Now: $10.00 Add to Cart Compare Compare Selected