Transferable Machine Guns - Stemple 76/45 Takedown Guns (STG) - U45 - U45 Spare and Replacement Parts

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STG Universal Barrel Shroud - Steel - Long Pattern

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Now: $275.00

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Rail and Hardware Kit for STG Universal 7.5" Barrel Shroud

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Now: $36.50

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STG Universal Barrel Shroud - Steel 7.5"

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Now: $275.00

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STG Universal Charging Handle - Hook Pattern

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Now: $23.50

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STG Universal Charging Handle - Round Pattern

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Now: $23.50

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BRP STG T Shirt by Nine Line - Red

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Now: $25.00

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Internally Threaded Pattern (ITP) Trunion Assembly

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Now: $395.00

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

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Now: $15.00

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STG34 - U Lower Assembly

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Now: $1,050.00

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U Lower Assembly - Nib Plated - Black Distressed

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45 ACP Bolt for ITP Setups

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Now: $450.00

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Folding Universal Slow Fire Stock and Buffer Assembly for ITP Setups

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Now: $540.00

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Universal Slow Fire Stock and Buffer Assembly for ITP Setups

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Now: $360.00

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ALUMINUM Bolt Extension for ITP Setups - Shoulderless Pattern

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Now: $60.00

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STEEL Bolt Extension for ITP Setups - Shoulderless Pattern

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Now: $60.00

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Buffer Body for ITP Setups

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Now: $55.00

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STEEL Bolt Extension for ITP Setups

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Now: $60.00

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Double Picatinny Tripod Adapter

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Now: $550.00

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ALUMINUM Bolt Extension with Law Tactical Adapter for ITP Setups

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Now: $85.00

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ALUMINUM Bolt Extension for ITP Setups

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Now: $60.00

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Adjustable Bolt System - ALUMINUM Bolt Extension for CAR

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Was: $60.00

Now: $47.50

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Adjustable Bolt System - Heavy STEEL Bolt Extension for Lower Rates

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Was: $50.00

Now: $47.50

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Extension Adapter for Law Tactical Folding Stock Sets

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Now: $25.00

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Spare Bottom Foam for STG Universal Case

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Now: $25.00

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Finned STG1928 10.35" Barrel Assembly with Compensator

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Now: $340.00

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KP31 Barrel Spacer For Use on Stemple STG Setups

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Now: $12.75

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

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Now: $275.00

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BRP MG08 Pattern Stemple STG Spade Grip Kit for STG U9SF, U45, & U7.62

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Now: $495.00

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STG1928 10.35" Barrel Assembly with Compensator

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Now: $305.00

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KP31 Shroud Shim - .01" thick

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Now: $4.85

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S7 - STG Universal Extractor with Spring and Pin

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Now: $35.00

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U45 and STG1928 10.35" barrel threaded 5/8"-24

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Now: $160.00

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STG Universal Barrel Shroud with Extra Rail (NiB Plated)

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Now: $265.00

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Hydraulic Buffer for Universal Adjustable Bolt System

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Now: $105.00

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578" - 28 thread extension

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Now: $25.00

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STG Vinyl Stickers 2" x 2"

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Now: $0.10

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U9SF & U45 Manual - (hard copy 36 pages: 2010-2020 pattern)

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Now: $8.50

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KP31 Shroud Shim - .002" thick

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Now: $4.85

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Ejector U45, U9SF, U7.62

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Now: $14.00

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STG Universal Barrel Shroud with Extra Rail (Black Anodized)

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Now: $250.00

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Suomi KP31, Swed M37, Stemple U9 Trigger Pack Sear Spring

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Now: $5.20

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KP31 Barrel Shim - .001 thick

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Now: $2.75

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Picatinny Rail for Shroud

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Now: $32.00

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U45 10.35" barrel - threaded .578"-28

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Now: $150.00

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Universal Front Takedown Pin

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Now: $15.95

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578" - 28 thread protector

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Now: $25.00

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KP31 Shroud Shim - .005" thick

MSRP:

Now: $4.85

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PIAT Cleaning Brush

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Now: $4.50

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Stemple Trunion Retaining Pins

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Now: $12.50

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STG Combo Wrench

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Now: $45.00

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STG Multi-Tool

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Now: $17.50

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Adjustable Bolt System Mainspring - Extra Heavy

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Now: $12.00

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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"...

MSRP:

Now: $275.00
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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...

MSRP:

Now: $36.50
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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...

MSRP:

Now: $275.00
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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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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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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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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

MSRP:

Now: $395.00
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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

MSRP:

Now: $15.00
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STG34 - U Lower Assembly

In 2003, the original inventor, John Stemple collaborated with BRP Corp to make new and replacement parts for the Stemple 76/45 receivers he manufactured prior to the 1986 cutoff. From this came a series of compatible drop-on parts for...

MSRP:

Now: $1,050.00
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U Lower Assembly - Nib Plated - Black Distressed

Standard U Lower Assembly for use with all U9, U9SF and U45. The select-fire trigger pack is installed and timed for use with Standard Universal setups. Also Includes: Rear Takedown Pin Rear Takedown Pin Support Block AR Takedown Push...

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45 ACP Bolt for ITP Setups

STG Universal 45 acp Bolt for Internally Threaded Pattern (ITP) setups Weight: 1.51 lbs Reference Chart

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Now: $450.00
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Folding Universal Slow Fire Stock and Buffer Assembly for ITP Setups

Law Tactical Folding Stock and Buffer Assembly Compatible Stemple 76/45 Internally Threaded Pattern (ITP) Receivers. This setup is also used for the adjustable bolt system. Includes: Buffer Body (ITP spec) with Law Tactical Folding...

MSRP:

Now: $540.00
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Universal Slow Fire Stock and Buffer Assembly for ITP Setups

Standard Replacement Stock and Buffer Assembly for Stemple 76/45 Internally Threaded Pattern (ITP) Receivers. This setup is also used for the adjustable bolt system. Includes: Buffer Body (ITP spec) BRP...

MSRP:

Now: $360.00
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ALUMINUM Bolt Extension for ITP Setups - Shoulderless Pattern

Shoulderless ALUMINUM - CAR Length Bolt Extension for STG Universal Internally Threaded Pattern (ITP) U9SF, U45, & U762 •• With the rear shoulders removed from the extensions, the buffer tube does not need to be removed to change...

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Now: $60.00
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STEEL Bolt Extension for ITP Setups - Shoulderless Pattern

Shoulderless STEEL - CAR Length Bolt Extension for STG Universal Internally Threaded Pattern (ITP) U9SF, U45, & U762 •• With the rear shoulders removed from the extensions, the buffer tube does not need to be removed to change...

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Now: $60.00
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Buffer Body for ITP Setups

Includes: Stripped Steel Buffer Body for ITP Setups and Sealing Ring * Parkerized Finish The rear threads are setup for standard AR and AR Carbine pattern buffer tubes. The Sealing Ring can be added to the the groove to make a...

MSRP:

Now: $55.00
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STEEL Bolt Extension for ITP Setups

STEEL - CAR Length Bolt Extension for STG Universal Internally Threaded Pattern (ITP) U9SF, U45, & U762 This is the heavier extension for lower rates. This is typically used with the 45 and 7.62 setups. It can also be used with the 9mm setup...

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Now: $60.00
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Double Picatinny Tripod Adapter

This machined steel mount adapter is designed to attached two firearms with Picatinny rails to MG3 AA mounts, M240 pintles, M60 gooseneck pintles, and Browning pintles with .557" diameter pins. Set Includes: Steel Front Arm Assembly with...

MSRP:

Now: $550.00
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ALUMINUM Bolt Extension with Law Tactical Adapter for ITP Setups

ALUMINUM - CAR Length Bolt Extension with Law Tactical Adapter for STG Universal Internally Threaded Pattern (ITP) U9SF, U45, & U762. The Law Tactical folding stock adapters add approximately 1.3" to the overall length of the bolt stroke...

MSRP:

Now: $85.00
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ALUMINUM Bolt Extension for ITP Setups

ALUMINUM - CAR Length Bolt Extension for STG Universal Internally Threaded Pattern (ITP) U9SF, U45, & U762 Reference Chart

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Now: $60.00
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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 Reference Chart...

MSRP:

Was: $60.00

Now: $47.50
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Adjustable Bolt System - Heavy STEEL Bolt Extension for Lower Rates

Steel - CAR Length Bolt Extension for STG Universal Heavy Bolt System U9SF, U45, & U762 This is the heavier extension for lower rates. This is typically used with the 45 and 7.62 setup. It can also be used with the 9mm setup but only with...

MSRP:

Was: $50.00

Now: $47.50
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Extension Adapter for Law Tactical Folding Stock Sets

The Law Tactical folding stock adapters add approximately 1.3" to the overall length of the bolt stroke. This part screws into the rear of the Universal bolt extensions for use with Law Tactical folding stock sets.

MSRP:

Now: $25.00
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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...

MSRP:

Now: $25.00
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Finned STG1928 10.35" Barrel Assembly with Compensator

Complete STG 1928 barrel assembly for post-2012 parts sets. Includes: Finned Barrel Lock Nut Compensator Front Sight Assembly 45ACP 41V50 Steel Parkerized Finish Threaded 5/8"-24 on end. The compensator threads on the...

MSRP:

Now: $340.00
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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...

MSRP:

Now: $12.75
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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...

MSRP:

Now: $275.00
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BRP MG08 Pattern 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 with Machined Steel Frame and MG08-Type Grips Trigger Puller Assembly Trigger Connecting Rod Grip Options:...

MSRP:

Now: $495.00
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STG1928 10.35" Barrel Assembly with Compensator

Complete STG 1928 barrel assembly for post-2012 parts sets. Includes: Barrel Lock Nut Compensator Front Sight Assembly 45ACP 41V50 Steel Parkerized Finish Threaded 5/8"-24 on end. The compensator threads on the end of...

MSRP:

Now: $305.00
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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
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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...

MSRP:

Now: $35.00
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U45 and STG1928 10.35" barrel threaded 5/8"-24

45ACP 10.35" long barrel 41V50 Steel Parkerized Finish Fits U45 and STG1928 setups Threaded 5/8"-24 on end

MSRP:

Now: $160.00
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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...

MSRP:

Now: $265.00
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Hydraulic Buffer for Universal Adjustable Bolt System

Hydraulic Buffer for adjustable bolt system STG setups.

MSRP:

Now: $105.00
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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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STG Vinyl Stickers 2" x 2"

2" x 2" vinyl sticker

MSRP:

Now: $0.10
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U9SF & U45 Manual - (hard copy 36 pages: 2010-2020 pattern)

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

MSRP:

Now: $8.50
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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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Ejector U45, U9SF, U7.62

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

MSRP:

Now: $14.00
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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...

MSRP:

Now: $250.00
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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
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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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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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U45 10.35" barrel - threaded .578"-28

45ACP 10.35" long barrel Stainless Steel Threaded .578"-28 on end

MSRP:

Now: $150.00
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Universal Front Takedown Pin

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

MSRP:

Now: $15.95
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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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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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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.

MSRP:

Now: $4.50
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Stemple Trunion Retaining Pins

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

MSRP:

Now: $12.50
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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.

MSRP:

Now: $45.00
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STG Multi-Tool

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MSRP:

Now: $17.50
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Adjustable Bolt System Mainspring - Extra Heavy

CAR mainspring to be used with higher pressure .45acp and 7.62x25 ammo to reduce cyclic rate. This spring should not be used with the 9mm setup. STG Universal U7.62, U45, & STG 7.62

MSRP:

Now: $12.00
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U45 Spare and Replacement Parts