Stemple Trunion Assembly - Slide Lock Pattern

Standard replacement Trunion Assembly for Stemple STG Standard Bolt Setups without pin mounts: Includes trunion, ejector, locking piece, locking pin, and spacer. Compatible with U9, 76, Stemple Suomi & 34k Stemple 76/45 setups without trunion mount...

BRP STG T Shirt by Nine Line

BRP STG T-Shirt by Nine Line  Black Shirt With White Artwork

Slide Lock Trunion: Trunion Body with Ejector

Trunion Body with Ejector for Slide Lock Trunion Assembly   Compatible with Stemple STG Standard Bolt Setups Slide Lock Trunion systems

Slide Lock Trunion: Locking Piece

Locking Piece for Slide Lock Trunion Assembly   Compatible with Stemple STG Standard Bolt Setups Slide Lock Trunion systems

Slide Lock Trunion: Locking Pin

Trunion Locking Pin for Slide Lock Trunion Assembly   Compatible with Stemple STG Standard Bolt Setups Slide Lock Trunion systems

Slide Lock Trunion: Spacer

Spacer (.030) for Slide Lock Trunion Assembly   Compatible with Stemple STG Standard Bolt Setups Slide Lock Trunion systems

Original STEN Ruptured Case Tool, WW2 dated

Original WW2 Tool: mfg mark "Richards Scheffield" with a WW2 date. This is a very useful tool for clearing any 9mm chamber.

U9 8.64" barrel threaded 1/2"-28

9mm  8.64" long barrel  Stainless Steel Threaded .1/2"-28 on end For use on 2010 pattern shroud  (see reference pic)

U Lower Assembly - Black

Standard U Lower Assembly for use with U9, U9SF and U45 Black anodized finish

STG Universal Barrel Shroud with Extra Rail (NiB Plated)

STG Universal quad rail barrel shroud for 10", 10.35" and 16" barrels:   The bottom rail in machined into the shroud.  1 accessory is included.  Accessory rails can be attached to the top, left and right of the shroud.  Extra...

STG U Magazine Housing (complete) NiB Plated

Standard replacement magazine housing for 2011 and later pattern Universal setups -  (U9 and U9SF STG platforms) This is a complete magazine housing for 1.375" OD Stemple 76/45 Receiver to allow use with Finnish and Swedish pattern 9mm drums and...

Hydraulic Buffer for Universal Adjustable Bolt System

Hydraulic Buffer for adjustable bolt system STG setups.

1/2" - 28 thread extension 1" long

Steel Thread Extension for 1/2" - 28 Threaded U9, U7.62 & 34k barrel    Features wrench flats for easy removal. (9/16" wrench)   OAL: 1.4" Extends threads by 1"

578" - 28 thread extension

Stainless Steel Thread Extension for 578" - 28 Threaded U9 and U45 Barrels.    Features wrench flats for easy removal. (3/4 wrench)   OAL: 1.2" Extends threads by .7"

STG Vinyl Stickers 2" x 2"

2" x 2" vinyl sticker

U9SF & U45 Manual - (hard copy 36 pages)

Stemple 76/45 - Stemple Takedown Gun U45/U9SF manual hard copy - 36 pages

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...

Ejector U45, U9SF, U7.62

Standard replacement ejector for Stemple STG pattern trunions:  STG U45, U9SF, U7.62 Includes ejector blade and retaining pins.

STG Universal Barrel Shroud with Extra Rail (Black Anodized)

STG Universal quad rail barrel shroud for 10", 10.35" and 16" barrels:   The bottom rail in machined into the shroud.  1 accessory is included.  Accessory rails can be attached to the top, left and right of the shroud.  Extra...

Stemple STG Spade Grip Kit for STG U9SF, U45, & U7.62

Spade grip adapter setup for Stemple machine guns with heavy bolt systems with CAR pattern stocks.   Includes: rear grip assembly, trigger bar, and trigger adapter   Installation Instructions   Mounting Adapters For...

U9 10.35" barrel threaded 1/2"-28

9mm  10.35" long barrel  Stainless Steel Threaded .1/2"-28 on end

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...

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

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...

1/2" - 28 thread protector

Stainless Steel Thread Protector & Flash Hider for 1/2" - 28 Threaded for U9 and U7.62 10" and 16" barrels   Features wrench flats for easy removal.

U9 Stock and Buffer Assembly

Standard Replacement Stock and Buffer Assembly for U9   Includes Ace Short Stock (AKFX) .5" Rubber Butt Pad Folding Stock Mechanism Rear Cap with Mainspring Rod Polyurethane Buffer Pad (Red)   The rear of the cap is drilled and...

Picatinny Rail for Shroud

Picatinny Rail for MN shroud and Suomi Shrouds that have been drill and tapped by BRP   3x Mount Screws included

U9 10.35" barrel threaded .578"-28

9mm  10.35" long barrel  Stainless Steel Threaded .578"-28 on end

U Lower Assembly - Nib Plated (GREY/SILVER)

Standard U Lower Assembly for use with U9, U9SF and U45.  The select-fire trigger pack is installed and timed for use with Standard Universal setups.   NiB One™ plating is added to the aluminum components in tehlower housing...

Universal Front Takedown Pin

Standard HK Small Pin used as front takedown pin for the U9, U9SF, U45, U7.62, STG76 and Stemple Suomi

9mm & 7.62x25 Bolt for Adjustable Bolt System

STG Universal Heavy Adjustable System: 9mm / 7.62x25 Bolt  

Adjustable Bolt System - ALUMINUM Bolt Extension for CAR

ALUMINUM - CAR Length Bolt Extension for STG Universal Heavy Bolt System U9SF, U45, & U762 This lighter bolt extension is typically necessary for proper function with weak 9mm ammo running in the Heavy Bolt System

578" - 28 thread protector

Stainless Steel Thread Protector & Flash Hider for 578" - 28 Threaded U9 and U45 Barrels.    Features wrench flats for easy removal.

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...

Mainspring STG U9, 34k, & Suomi - New Production

New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k

Stemple STG 9mm Barrel 12.875"

12.875" barrel for BRP Stemple Takedown Guns.  These can be adapted for use with Finnish KP31 and semi auto variants.   Works with slant pattern KP31 shroud.  Will work with compensated shroud if the exit hole is opened to .635"...

Stemple STG 9mm Barrel 16" Threaded 1/2-28

16" barrel for BRP Stemple Takedown Guns.  Works with slant pattern KP31 shroud.  Will work with compensated shroud if the exit hole is opened to .635".   Extractor Location The extractor relief on this barrel is setup for the...

STG Universal 9mm Bolt for standard rate ( with NiB One™ plating)

Original STG Universal 9mm Bolt with Extractor for STG Universal (STG-U) (standard-rate system / full round)   NiB One™ plating This is an electroless NIB nickel-boron plating system that is comprised of boron, nickel, and other metals to...

PIAT Cleaning Brush

Original PIAT bristle brush. Approximately 12" long with 1.5" diameter brush.      Also, very useful for cleaning the inside of MG34 & MG42 barrel jackets, and BREN receivers.

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...

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...

Stemple Trunion Retaining Pins

Standard set of replacement Trunion Retaining Pins.  (2 pins included)

Stemple STG U-9mm, 76, 76W, 34k Trunion (Threaded Type)

2006-2010 Threaded Type Trunion.  Standard replacement Trunion Assembly for Stemple STG pattern trunions:  STG U-9mm, STG 76, STG 76W, & STG 34k Includes ejector, lock nut, and retaining pins.

STG-U-34k/76/76W Buffer Rod

STG Buffer Rod for STG34k, 76, 76W to be used with standard Suomi mainsprings

STG-U-34k/76/76W Buffer

Polyurethane buffer for STG34k, 76, 76W

Suomi/STG Magazine Latch Assembly

M31 Magazine Latch Assembly: Latch, Spring, & Retaining Pin For Suomi KP31, &  STG 34k, 76, 76w (please specify which type when ordering)

STG Combo Wrench

Barrel tool with fitted socket for STG Barrel Locknuts, 3/4 wrench for removing the flash-hider, and spanner for suppressor disassembly.

STG Multi-Tool

Type a description for this product here...

Barrel Jacket Retaining Pin: for 2008-2010 ptrn 34k, 76, 76W

Barrel Jacket Retaining Pin: for 2008-2010 ptrn 34k, 76, 76W   retains barrel jacket to magazine housing

STG 76, 76W, 34k 2006-2010 pattern barrel Lock Nut

This part threads to the front of the trunion to retain the barrel. Includes nut only.

Stemple Trunion U9, 76, Stemple Suomi & 34k

Standard replacement Trunion Assembly for Stemple STG Standard Bolt Setups with pin mounts: Includes ejector and retaining pins.

Ejector U9, 76, Stemple Suomi, & 34k

Standard replacement ejector for Stemple STG pattern trunions:  STG U-9mm, STG 76, STG 76W, & STG 34k Includes ejector blade and retaining pin.