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STG 34k Parts and Accessories

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  • Stemple Trunion Assembly - Slide Lock Pattern
    $390.00 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...

  • Slide Lock Trunion: Trunion Body with Ejector
    $250.00 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
    $120.00 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
    $15.00 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
    $5.00 Slide Lock Trunion: Spacer
    Spacer (.030) for Slide Lock Trunion Assembly   Compatible with Stemple STG Standard Bolt Setups Slide Lock Trunion systems

  • $5.00 STG 34k Screw Kit
    Includes:   1 x 8-32 x 3/16 dog point   1 x 8-32 x 1/4 dog point   3 x  8-32 X 1/4 Low Head    1 x  6-32 X .5 socket set screw (barrel jacket timing screw)   1 x  8-32 x...

  • 1/2 - 28 to 15mm x 1mm thread adapter
    $17.50 1/2 - 28 to 15mm x 1mm thread adapter
    1/2 - 28 to 15mm x 1mm thread adapter(1/2" wrench flat for standard M16 armorer's wrench. Machined from 4140 chrome-moly steel. Black Oxide or Parkerized finishes available) This part adapts the AR standard barrel...

  • 1/2" - 28 thread protector
    $25.00 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...

  • 34k Front Takedown Pin (HK Large Pin)
    $4.00 34k Front Takedown Pin (HK Large Pin)
    Standard HK Large Pin used as front takedown pin for the STG34k.  This pin is used to secure the Lower Housing to the Magazine Houisng.

  • 34k Rear Takedown Pin
    $8.00 34k Rear Takedown Pin
    Rear Takedown Pin for 34k

  • 34k Sear Assembly
    $70.00 34k Sear Assembly
    Complete sear assembly for the STG34k Includes Sear, Sear Spring, and Sear Pin 

  • 34k Sear Lever Assembly
    $19.50 34k Sear Lever Assembly
      Includes Sear Lever and Sear Lever Pin

  • 34k Sear Lever Pin
    $4.50 34k Sear Lever Pin
      Includes Sear Lever Pin (Sear Lever Not Included)

  • 34k Stock Assembly (Fixed)
    $225.00 34k Stock Assembly (Fixed)
    Short Fixed Stock for the STG-34k.  Measured from butt to trigger to match the second position of a CAR stock for a familiar hold.  Easily attached and removed from the lower housing.   Make from aluminum...

  • 34k Stock Screw
    $15.00 34k Stock Screw
    34k Stock Screw for Short/Fixed STG34k Stock Assembly

  • 34k Takedown Pin Retainer Spring Latch
    $10.00 34k Takedown Pin Retainer Spring Latch
    Rear Spring Latch for 34k

  • 578" - 28 thread protector
    $25.00 578" - 28 thread protector
    Stainless Steel Thread Protector & Flash Hider for 578" - 28 Threaded U9 and U45 Barrels.    Features wrench flats for easy removal...

  • Barrel Jacket Retaining Pin: for 2008-2010 ptrn 34k, 76, 76W
    $4.00 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

  • Ejector U9, 76, Stemple Suomi, & 34k
    $12.00 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.

  • KP31 Barrel Shim - .001 thick
    $2.75 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...

  • KP31 Barrel Shim - .003 thick
    $2.75 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...

  • KP31 Shroud Shim - .002" thick
    $4.85 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...

  • KP31 Shroud Shim - .005" thick
    $4.85 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...

  • Mainspring STG U9, 34k, & Suomi - New Production
    $10.00 Mainspring STG U9, 34k, & Suomi - New Production
    New Production Mainspring for Suomi KP31, Swed M37, STG 76, Stemple Suomi, STG U9, STG 34k

  • MG34 Grip Screw Tools
    $8.00 MG34 Grip Screw Tools
    Set of specially made 1/4 in. drive bits fitted to the size of the MG34 grip screw and nut.

  • MG34 Grip Screw/Nut
    $15.00 MG34 Grip Screw/Nut
    New Production Grip Screws to Original Specifications. 1 screw and 1 nut per set. Each trigger pack requires 2 sets.   Reproduction  Dark Grey Parkerized Finish

  • MG34 Sear Spring - New Production
    $7.00 MG34 Sear Spring - New Production
    Copy of original Sear Spring.   Pictured is a comparison between our new sear sprign and a worn original sear spring.   This part is incredibly important to full auto guns.  It helps prevent 'stutter-stop'...

  • MG34/42 Trigger Housing Pin Tools
    $20.00 MG34/42 Trigger Housing Pin Tools
    MG-34/42 Trigger Housing Pin Punch Set ($20 for both tools). A must have for all MG34 and MG42 owners. The Pin Start tool has a conical lead-in that precisely compresses the 'male' 34/42 trigger housing pin spring tabs. The...

  • MG34/42 Trigger Housing Pins (1 male, 1 female)
    $30.00 MG34/42 Trigger Housing Pins (1 male, 1 female)
    Trigger Housing Mount Pins: mounts trigger housing to receiver

  • Picatinny Rail for Shroud
    $32.00 Picatinny Rail for Shroud
    Picatinny Rail for MN shroud and Suomi Shrouds that have been drill and tapped by BRP   3x Mount Screws includeds

  • Picatinny Rail Top for Stemple Receiver
    $32.00 Picatinny Rail Top for Stemple Receiver
    Picatinny Rail Top for Stemple Receiver with mount screws

  • ProMag Swiss Style Grip
    $14.00 ProMag Swiss Style Grip
    ProMag Swiss Style Grip

  • Stemple STG 9mm Barrel 12.75"
    $120.00 Stemple STG 9mm Barrel 12.75"
    12.75" 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...

  • Stemple STG 9mm Barrel 16" Threaded 1/2-28
    $120.00 Stemple STG 9mm Barrel 16" Threaded 1/2-28
    16" 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...

  • Stemple STG U-9mm, 76, 76W, 34k Trunion (Threaded Type)
    $200.00 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.

  • Stemple Trunion Retaining Pins
    $12.50 Choose Options Stemple Trunion Retaining Pins
    Standard set of replacement Trunion Retaining Pins.  (2 pins included)

  • Stemple Trunion U9, 76, Stemple Suomi & 34k
    $350.00 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.

  • STG 76, 76W, 34k 2006-2010 pattern barrel Lock Nut
    $25.00 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.

  • STG 9mm bolt - 34k & Stemple Suomi
    $360.00 STG 9mm bolt - 34k & Stemple Suomi
    STG 34k & Stemple Suomi Bolt with Extractor

  • STG Combo Wrench
    $30.00 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
    $17.50 STG Multi-Tool
    Type a description for this product here...

  • STG Universal 9mm Barrel - 10"
    $120.00 STG Universal 9mm Barrel - 10"
    STG Universal 9mm Barrel - 10", threaded 1/2-28 Used on: STG-U  STG43 STG76   Works with M37 Shrouds, Barrel Nut, and MN Shroud setups.   US Made 4140 Alloy Steel Parkerized Metal Finish Twist Rate:...

  • STG Universal Barrel Bushing
    $8.00 STG Universal Barrel Bushing
    STG Universal Barrel Bushing: fits between barrel and shroud for locking system.

  • STG Universal Barrel Nut
    $35.00 STG Universal Barrel Nut
    Takes place of barrel shroud to lock the barrel to the trunion without the need for a shroud

  • STG Universal Barrel Shroud (with extra rail)
    $250.00 STG Universal Barrel Shroud (with extra rail)
    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...

  • STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL)
    $140.00 STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL)
    M31 Slant Barrel Shroud with new parkerize finish for use with 13" barrels For STG 43, 34k 2011 ptrn, 76 2011 ptrn, & U ptrn 9" rail mount on bottom of shroud

  • STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL)
    $140.00 STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL)
    M31 Slant Barrel Shroud with new parkerize finish for use with 13" barrels For STG 43, 34k 2011 ptrn, 76 2011 ptrn, & U ptrn 9" rail mount on bottom of shroud

  • STG Universal Charging Handle
    $15.00 STG Universal Charging Handle
    STG Charging Handle for: STG Universal STG 76 STG 76W STG 34k STG 43 Stemple Suomi

  • STG Universal Extractor with Spring and Pin
    $25.00 STG Universal Extractor with Spring and Pin
    Standard AR- M16 Extractor with small flat machined to work in all Univerals configurations: U9, 34k, Stemple-Suomi, STG 76, U9SF, U45, & U762   Includes extra power Wolfe spring and mounting...

  • STG-U-34k/76/76W Buffer
    $7.50 STG-U-34k/76/76W Buffer
    Polyurethane buffer for STG34k, 76, 76W

  • STG-U-34k/76/76W Buffer Rod
    $12.00 STG-U-34k/76/76W Buffer Rod
    STG Buffer Rod for STG34k, 76, 76W to be used with standard Suomi mainsprings

  • STG34k Buffer Assembly (complete)
    $145.00 STG34k Buffer Assembly (complete)
    STG34k Buffer Assembly: Buffer, Buffer Cap, Retaining Pins, Buffer Rod, Polyurethane Buffer, Rear Takedown Pin, Rear Takedown Pin Spring Latch

  • STG34k Buffer Cap
    $45.00 STG34k Buffer Cap
    STG34k Buffer Assembly: Buffer, Buffer Cap, Retaining Pins, Buffer Rod, Polyurethane Buffer, Rear Takedown Pin, Rear Takedown Pin Spring Latch

  • STG34k Magazine Housing
    $350.00 STG34k Magazine Housing
    2011 Pattern STG34k Magazine Housing (complete with magazine latch and barrel latch) The rear is also designed to fit the stocket of a Finish KP31 stock.  

  • Suomi 36 rd stick magazine
    $28.50 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...

  • Suomi Drum
    $65.00 Suomi Drum
    70rd original Finnish Suomi drum. Works with M31/KP31, M37/39, M45. (not for sale where prohibited) Excellent condition

  • Suomi/STG Magazine Latch Assembly
    $15.00 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)

  • U9 10.35" barrel threaded .578"-28
    $120.00 U9 10.35" barrel threaded .578"-28
    9mm  10.35" long barrel  Stainless Steel Threaded .578"-28 on end

  • U9 10.35" barrel threaded 1/2"-28
    $120.00 U9 10.35" barrel threaded 1/2"-28
    9mm  10.35" long barrel  Stainless Steel Threaded .1/2"-28 on end

  • Underfolding Stock (AK pattern)
    $175.00 Underfolding Stock (AK pattern)
    AK unferfolding stock notched for 34k.  Polish pattern... the best ones from the Com Block.

  • AR Handguard Foregrip
    $4.50 AR Handguard Foregrip
    AR Handguard Foregrip:  Simply uses screws and nuts to attach to standard A2 and M4 handguards (mounting parts included).   Also fits shrouds for STG34k and STG76