STG 34k Parts and Accessories

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sku: MG34G10-Brown

MG34 G10 Grip Set with Mounting Hardware (BROWN)

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Now: $115.00

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sku: MG34G10-Black

MG34 G10 Grip Set with Mounting Hardware (BLACK)

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Now: $115.00

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sku: MN-Shroud-Steel 12

STG Universal Barrel Shroud - Steel - Long Pattern

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Now: $275.00

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sku: BT15RAIL-Kit

Rail and Hardware Kit for STG Universal 7.5" Barrel Shroud

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Now: $36.50

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sku: MN-Shroud-Steel 7.5

STG Universal Barrel Shroud - Steel 7.5"

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Now: $275.00

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sku: 7692-H

STG Universal Charging Handle - Hook Pattern

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Now: $23.50

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sku: U-SL-Trun

Stemple Trunion Assembly - Slide Lock Pattern

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Now: $390.00

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sku: 7692-R

STG Universal Charging Handle - Round Pattern

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Now: $23.50

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sku: Red of STG-2018 Tshirt

BRP STG T Shirt by Nine Line - Red

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Now: $25.00

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sku: U-SL-Trun-TrunBody

Slide Lock Trunion: Trunion Body with Ejector

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Now: $250.00

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sku: U-SL-Trun-LPiece

Slide Lock Trunion: Locking Piece

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Now: $120.00

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sku: ITPTrun

Internally Threaded Pattern (ITP) Trunion Assembly

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Now: $395.00

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sku: U-SL-Trun-LPin-IPT

Internally Threaded Pattern (ITP) and Slide Lock Trunion: Locking Pin

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Now: $15.00

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sku: U-SL-Trun-Spacer

Slide Lock Trunion: Spacer - Stainless Steel

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Now: $5.00

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sku: 7645KPS- SHIM

STG Universal Buffer and Key Plate Shim

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Now: $4.00

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sku: 7645TDP-2021-SHIM

STG Universal Rear Takedown Pin SHIM for Lowers with AR Push Pin

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Now: $1.00

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sku: STG-Case FB

Spare Bottom Foam for STG Universal Case

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Now: $25.00

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sku: STG34k-2024 refurb

Refurbished Stemple Takedown Gun (STG) STG34k With Extra Parts

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sku: 9mmSMGGauge

9mm SMG Chamber and Headspace Gauge

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Now: $36.00

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sku: stg-kp-spacer-.4

KP31 Barrel Spacer For Use on Stemple STG Setups

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Now: $12.75

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sku: u9bbl-8.3

U9 8.3" Barrel

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Now: $150.00

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sku: MN-Shroud-NiB-BW

STG Universal Barrel Shroud with Extra Rail (NiB Battleworn® Plated)

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Now: $275.00

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sku: 3110-shroudshim.01

KP31 Shroud Shim - .01" thick

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Now: $4.85

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sku: U-extractor-S7

S7 - STG Universal Extractor with Spring and Pin

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Now: $35.00

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sku: MG34THP-set

MG34 and MG42 Trigger Housing Pins (1 male, 1 female) - Newly Made

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Now: $26.50

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sku: u9bbl.5-28-8.64

U9 8.64" barrel threaded 1/2"-28

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Now: $135.00

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sku: 34kMH-Nib

STG34k Magazine Housing NiB Plated

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Now: $375.00

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sku: MN-Shroud-NiB

STG Universal Barrel Shroud with Extra Rail (NiB Plated)

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Now: $265.00

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sku: 500-1-EXT

1/2" - 28 thread extension 1" long

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Now: $21.00

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sku: 578 T-EXT

578" - 28 thread extension

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Now: $25.00

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sku: STG-sticker

STG Vinyl Stickers 2" x 2"

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Now: $0.10

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sku: MG34TH-Sp

MG34 Trigger Spring

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Now: $4.95

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sku: 34kStockBPRubBod

34k Stock Body with Butt Plate with Rubber Pad

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Now: $235.00

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sku: 34kStockBPRub

34k Butt Plate with Rubber Pad

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Now: $125.00

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sku: 3110-shshim-.002

KP31 Shroud Shim - .002" thick

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Now: $4.85

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sku: MN-Shroud-BA

STG Universal Barrel Shroud with Extra Rail (Black Anodized)

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Now: $250.00

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sku: u9bbl.5-28-2019+

U9 10.35" barrel threaded 1/2"-28

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Now: $160.00

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sku: 3133-36

Suomi 36 rd stick magazine

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Now: $28.50

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sku: 3110-a-.001

KP31 Barrel Shim - .001 thick

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Now: $2.75

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sku: .500-28 TP

1/2" - 28 thread protector

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Now: $25.00

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sku: U-SRR

Picatinny Rail for Shroud

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Now: $32.00

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sku: u9bbl.578

U9 10.35" barrel threaded .578"-28

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Now: $160.00

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sku: 578 TP

578" - 28 thread protector

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Now: $25.00

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sku: 3110-shroudshim.005

KP31 Shroud Shim - .005" thick

MSRP:

Now: $4.85

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sku: 3108-N

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

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Now: $14.00

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sku: 3110-12.75

Stemple STG 9mm Barrel 12.75"

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Now: $160.00

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sku: 3110-16

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

MSRP:

Now: $135.00

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sku: STGBOLT-34k

STG 9mm bolt - 34k & Stemple Suomi ( with NiB One™ plating)

MSRP:

Now: $360.00

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sku: MG34TB

(Repro) MG34 Trigger Spring Base: fenderknoph

MSRP:

Now: $15.00

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sku: 09222011-07

PIAT Cleaning Brush

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Now: $4.50

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sku: U-M31CP

STG Universal Barrel Shroud - M31 Compensated Front (LONG PICATINNY RAIL)

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Now: $220.00

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sku: U-M31P

STG Universal Barrel Shroud - M31 Slant Front (LONG PICATINNY RAIL)

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Now: $220.00

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sku: MG34G10-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...

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Now: $115.00
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sku: MG34G10-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...

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Now: $115.00
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sku: MN-Shroud-Steel 12

STG Universal Barrel Shroud - Steel - Long Pattern

STG Universal barrel shroud for 4 lug trunions. Loosely patterned after the Danish short-barreled Suomi setup. Includes: Shroud Assembly Only. Rails, barrel, and swivel are NOT included. Fits STG 12.75" and 16"...

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Now: $275.00
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sku: BT15RAIL-Kit

Rail and Hardware Kit for STG Universal 7.5" Barrel Shroud

Atlas BT15 Rail Kit for BRP STG Steel Shroud This is the rail setup that fits the threaded holes in the BRP STG Steel Shroud. This shroud is capable of mounting 4 rails at 90º increments. Kit Includes: 1 x BT15 Rail 1 x...

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Now: $36.50
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sku: MN-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...

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Now: $275.00
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sku: 7692-H

STG Universal Charging Handle - Hook Pattern

STG Hook Pattern Charging Handle for: STG Universal STG 76 STG 76W STG 34k STG 43 Stemple Suomi

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Now: $23.50
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sku: U-SL-Trun

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...

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Now: $390.00
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sku: 7692-R

STG Universal Charging Handle - Round Pattern

STG Round Pattern Charging Handle for: STG Universal STG 76 STG 76W STG 34k STG 43 Stemple Suomi

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Now: $23.50
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sku: Red of STG-2018 Tshirt

BRP STG T Shirt by Nine Line - Red

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

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Now: $25.00
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sku: U-SL-Trun-TrunBody

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

MSRP:

Now: $250.00
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sku: U-SL-Trun-LPiece

Slide Lock Trunion: Locking Piece

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

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Now: $120.00
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sku: ITPTrun

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

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Now: $395.00
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sku: U-SL-Trun-LPin-IPT

Internally Threaded Pattern (ITP) and Slide Lock Trunion: Locking Pin

Trunion Locking Pin for Slide Lock Trunion Assembly and Internally Treaded Patter (ITP) setups Compatible with Stemple STG Standard Bolt Setups Slide Lock Trunion systems

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Now: $15.00
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sku: U-SL-Trun-Spacer

Slide Lock Trunion: Spacer - Stainless Steel

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

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Now: $5.00
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sku: 7645KPS- 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...

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Now: $4.00
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sku: 7645TDP-2021-SHIM

STG Universal Rear Takedown Pin SHIM for Lowers with AR Push Pin

.001 thick Shim for tightening the fit of the STG Universal Rear Takedown Pin to Universal Fire Control Groups with AR Push Pins for post-2020

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Now: $1.00
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sku: STG-Case FB

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...

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Now: $25.00
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sku: STG34k-2024 refurb

Refurbished Stemple Takedown Gun (STG) STG34k With Extra Parts

Actual Item Pictured Transferable MG on Form 3 in Georgia CALL TO ORDER Stemple 76/45 - STG34k Setup Completely Refurbished: New trunion - experimental setup with Nickel Boron Finish New bolt New barrel - threaded...

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sku: 9mmSMGGauge

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...

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Now: $36.00
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sku: stg-kp-spacer-.4

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...

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Now: $12.75
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sku: u9bbl-8.3

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...

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Now: $150.00
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sku: MN-Shroud-NiB-BW

STG Universal Barrel Shroud with Extra Rail (NiB Battleworn® 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...

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Now: $275.00
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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...

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Now: $4.85
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sku: U-extractor-S7

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...

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Now: $35.00
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sku: MG34THP-set

MG34 and MG42 Trigger Housing Pins (1 male, 1 female) - Newly Made

Trigger Housing Mount Pins: mounts trigger housing to receiver Newly Made Items Copied from the Original German Design Black Oxide Finish Includes: 1 Male Pin 1 Female Pin Finding original MG34/MG42 trigger housing pins can be...

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Now: $26.50
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sku: u9bbl.5-28-8.64

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

MSRP:

Now: $135.00
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sku: 34kMH-Nib

STG34k Magazine Housing NiB Plated

2011 Pattern STG34k Magazine Housing (complete with magazine latch and barrel latch) Nickel Boron (NiB) Plated

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Now: $375.00
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sku: MN-Shroud-NiB

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...

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Now: $265.00
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sku: 500-1-EXT

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"

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Now: $21.00
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sku: 578 T-EXT

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"

MSRP:

Now: $25.00
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sku: STG-sticker

STG Vinyl Stickers 2" x 2"

2" x 2" vinyl sticker

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Now: $0.10
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sku: MG34TH-Sp

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

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Now: $4.95
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sku: 34kStockBPRubBod

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...

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Now: $235.00
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sku: 34kStockBPRub

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...

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Now: $125.00
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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
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sku: MN-Shroud-BA

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...

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Now: $250.00
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sku: u9bbl.5-28-2019+

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...

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Now: $160.00
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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...

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Now: $28.50
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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
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sku: .500-28 TP

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.

MSRP:

Now: $25.00
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sku: U-SRR

Picatinny Rail for Shroud

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

MSRP:

Now: $32.00
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sku: u9bbl.578

U9 10.35" barrel threaded .578"-28

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

MSRP:

Now: $160.00
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sku: 578 TP

578" - 28 thread protector

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

MSRP:

Now: $25.00
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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
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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: $14.00
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sku: 3110-12.75

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...

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Now: $160.00
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sku: 3110-16

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...

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Now: $135.00
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sku: STGBOLT-34k

STG 9mm bolt - 34k & Stemple Suomi ( with NiB One™ plating)

Original STG 34k & Stemple Suomi Bolt Complete with Extractor Assembly. This bolt is identical to the U9 bolt with the exception of the angle cut for the sear geometry. NiB One™ plating This is an electroless NIB...

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Now: $360.00
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sku: MG34TB

(Repro) MG34 Trigger Spring Base: fenderknoph

Reproduction: made from stainless steel Spring base only. Spring not included.

MSRP:

Now: $15.00
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sku: 09222011-07

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.

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Now: $4.50
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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...

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Now: $220.00
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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...

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Now: $220.00
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STG 34k Parts and Accessories