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    • STG 34k Parts and Accessories

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    • Shown on original MG34 MG34 G10 Grip Set with Mounting Hardware (BROWN)

      MG34 G10 Grip Set with Mounting Hardware (BROWN)

      Newly Made MG34 Grip Set with Mounting Hardware. Includes: Left and Right Grip Panels made from  G10, a modern composite material which is total impervious to water, oil, solvent and most common chemicals. They are not injection molded plastic...

      $115.00
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    • MG34 G10 Grip Set with Mounting Hardware (BLACK) MG34 G10 Grip Set with Mounting Hardware (BLACK)

      MG34 G10 Grip Set with Mounting Hardware (BLACK)

      Newly Made MG34 Grip Set with Mounting Hardware. Includes: Left and Right Grip Panels made from  G10, a modern composite material which is total impervious to water, oil, solvent and most common chemicals. They are not injection molded plastic...

      $115.00
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    • STG Universal Barrel Shroud - Steel 7.5" STG Universal Barrel Shroud - Steel 7.5"

      STG Universal Barrel Shroud - Steel 7.5"

      STG Universal barrel shroud for 4 lug trunions.  Loosely patterned after the Swedish M37 short-barreled Suomi setup. Fits all STG barrels greater than 8" long Material: Steel Finish: Black Oxide or Parkerized (grey) - Please Specify OAL: 7...

      $275.00
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    • Stemple Trunion Assembly - Slide Lock Pattern

      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...

      $390.00
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    • Internally Threaded Pattern (ITP) Trunion Assembly Internally Threaded Pattern (ITP) Trunion Assembly

      Internally Threaded Pattern (ITP) Trunion Assembly

      Threaded Trunion Assembly for Internally Treaded Patter (ITP) setups This is the Trunion for Stemple STG ITP setups: U9, U9SF, U45, Stemple Suomi.   Includes: Threaded Trunion Trunion Locking Pin Ejector Standard Pattern

      $395.00
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    • STG Universal Buffer and Key Plate Shim STG Universal Buffer and Key Plate Shim

      STG Universal Buffer and Key Plate Shim

      Included 1 x .003" thick Shim for: 1) Tightening the fit of the STG Buffer-to-Receiver fit.   2) Spacing the Key Plate rearward so it bottoms on the Buffer when the Castle Nut is tightened rather than the Lower Assembly.  If the Key Plate...

      $4.00
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    • Spare Bottom Foam for STG Universal Case Spare Bottom Foam for STG Universal Case

      Spare Bottom Foam for STG Universal Case

      STG Universal Case Bottom Foam Adhesive backing can be used if desired by peeling the white cover. Cutouts for: M3 45acp mags x 2 kp31 drums x 2 kp31 mags x 2 universal mag housing - any type spare bolt bolt extension 10" barrel  without...

      $25.00
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    • 9mm SMG Chamber and Headspace Gauge 9mm SMG Chamber and Headspace Gauge

      9mm SMG Chamber and Headspace Gauge

      9mm SMG Chamber Wear and Headspace Gauge To ensure the safe operation of 9mm Fixed-Firing-Pin (FFP) Blow-Back (BB) Submachine Guns (SMGs), chamber wear and headspace should be verified.   Since SMGs don't typically show a lot of bore wear...

      $36.00
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    • KP31 Barrel Spacer For Use on Stemple STG Setups KP31 Barrel Spacer For Use on Stemple STG Setups

      KP31 Barrel Spacer For Use on Stemple STG Setups

      Given the difference between the Receiver and Trunion of an original KP31 and the Stemple 76/45, a Barrel Spacer that is approximately .4” long is necessary to use original KP31 Barrel Shrouds with the Stemple STG setups. Additional Barrel Shims...

      $12.75
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    • U9 8.3" Barrel U9 8.3" Barrel

      U9 8.3" Barrel

      9mm  8.3" long barrel  41V50 Steel / Parkerized Finish Polished chamber and feed ramp 1:10 twist Loosely patterned after the Swedish M37 short-barreled Suomi setup and Carl Gustaf M45/Swedish K For use with 7.5" Steel...

      $150.00
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    • KP31 Shroud Shim - .01" thick KP31 Shroud Shim - .01" thick

      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...

      $4.85
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    • S7 - STG Universal Extractor with Spring and Pin S7 - STG Universal Extractor with Spring and Pin

      S7 - STG Universal Extractor with Spring and Pin

      Newly manufactured extractor for all Universal configurations: U9, 34k, Stemple-Suomi, STG 76, U9SF, U45, U762, and post-2020 STG 1928s   Includes extra power Wolff spring and mounting pin.   Unlike the AR pattern extractors this has a more...

      $35.00
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    • U9 8.64" barrel threaded 1/2"-28 U9 8.64" barrel threaded 1/2"-28

      U9 8.64" barrel threaded 1/2"-28

      9mm  8.64" long barrel  Stainless Steel Threaded .1/2"-28 on end Polished chamber and feed ramp 1:10 twist For use on 2010 pattern shroud  (see reference pic) and 7.5" Steel Shrouds

      $135.00
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    • 1/2" - 28 thread extension 1" long

      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"

      $21.00
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    • 578" - 28 thread extension 578" - 28 thread extension

      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"

      $25.00
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    • MG34 Trigger Spring MG34 Trigger Spring

      MG34 Trigger Spring

      Reproduction copy of original Trigger Spring: This is the spring that rests on the trigger spring base (fenderknoph) and inside the back of the trigger itself

      $4.95
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    • 34k Stock Body with Butt Plate with Rubber Pad 34k Stock Body with Butt Plate with Rubber Pad

      34k Stock Body with Butt Plate with Rubber Pad

      New stock body and butt plate with rubber pad for the STG 34k setup with.  1/2" and 1" length rubber pads are available (1/2" pictured). Made from aluminum with hard anodize plating.  Features two points for use of modular quick-detachable...

      $235.00
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    • 34k Butt Plate with Rubber Pad 34k Butt Plate with Rubber Pad

      34k Butt Plate with Rubber Pad

      New butt plate with rubber pad for the STG 34k setup with up/down adjustable butt plates.  1/2" and 1" length rubber pads are available (1/2" pictured). Made from aluminum with hard anodize plating.  Features two points for use of modular...

      $125.00
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    • KP31 Shroud Shim - .002" thick KP31 Shroud Shim - .002" thick

      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...

      $4.85
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    • U9 10.35" barrel threaded 1/2"-28 U9 10.35" barrel threaded 1/2"-28

      U9 10.35" barrel threaded 1/2"-28

      9mm 1:10 twist Threaded 1/2"-28 10.35" long barrel  41V50 Steel / Parkerized Finish Polished chamber and feed ramp Compatible with all shroud setups except for the long KP31 pattern shrouds    Ideal for use with direct thread...

      $160.00
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    • Suomi 36 rd stick magazine

      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...

      $28.50
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    • KP31 Barrel Shim - .001 thick KP31 Barrel Shim - .001 thick

      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...

      $2.75
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    • 1/2" - 28 thread protector

      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.

      $25.00
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    • 578" - 28 thread protector 578" - 28 thread protector

      578" - 28 thread protector

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

      $25.00
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    • KP31 Shroud Shim - .005" thick KP31 Shroud Shim - .005" thick

      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...

      $4.85
      Add to Cart
    • Stemple STG 9mm Barrel 12.75" Stemple STG 9mm Barrel 12.75"

      Stemple STG 9mm Barrel 12.75"

      12.75" barrel for BRP Stemple Takedown Guns.  FULL AUTO CHAMBER SPEC.   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...

      $160.00
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    • Stemple STG 9mm Barrel 16" Threaded 1/2-28 Stemple STG 9mm Barrel 16" Threaded 1/2-28

      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...

      $135.00
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    • PIAT Cleaning Brush PIAT Cleaning Brush

      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.

      $4.50
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