Stocks & Parts

UCS Stock

STOCK SPECIFICATIONS: Length: 7.85-10.85" Weight: 1lb 2oz (without cheek riser) Mount Function: Folding - Left or Right - Canted 5° Mount Height: 1.85"  Mount Width: 1.4" (excluding hinge) DESCRIPTION: The Magpul UCS (Universal Carbine Stock)...

HDA3 Stock/Brace for ACR/SCYTHE

The HDA3 is a modular stock/brace system developed from a collaboration between Haga Defense and A3 Industries. The HDA3 was designed specifically to integrate seamlessly across dozens of firearm platforms without sacrificing strength or aesthetics to do...

B5 Modular Platform Stock

STOCK SPECIFICATIONS: Length: 7.75-10.0" Weight: 1lb 1oz Mount Function: Folding - Left - Straight Mount Height: 2.125"  Mount Width: 1.125" (excluding hinge) DESCRIPTION:The B5 Systems Modular Platform Stock features an integral left-side folding...

Versa Stock

STOCK SPECIFICATIONS: Length: 9.5" Weight: 11.9 oz Mount Function: Folding - Left or Right - Straight Mount Height: 1.12" (excluding hinge) Mount Width: 1.00" (excluding hinge) DESCRIPTION: Introducing the All-New 1913 Versa Stock by A3 Industries...

KRISS Folding Stock (Gen 3)

STOCK SPECIFICATIONS: Length: 9.0-11.0" Weight: 11.9 oz Mount Function: Folding - Right or Left - Straight Mount Height: 1.16" Mount Width: 1.35" The KRISS G3 Folding Stock is a durable, polymer buttstock designed for both versatility and ease of use...

HDA3 Stock/Brace for Robinson Arms XCR-L

The HDA3 is a modular stock/brace system developed from a collaboration between Haga Defense and A3 Industries. The HDA3 was designed specifically to integrate seamlessly across dozens of firearm platforms without sacrificing strength or aesthetics to do...

HDA3 Stock/Brace for CMMG DISSENT

The HDA3 is a modular stock/brace system developed from a collaboration between Haga Defense and A3 Industries. The HDA3 was designed specifically to integrate seamlessly across dozens of firearm platforms without sacrificing strength or aesthetics to do...

HDA3 Stock/Brace for Springfield Kuna

The HDA3 is a modular stock/brace system developed from a collaboration between Haga Defense and A3 Industries. The HDA3 was designed specifically to integrate seamlessly across dozens of firearm platforms without sacrificing strength or aesthetics to do...

Non-Folding 1913 Mount for SIG Style Stocks & Braces

Non-folding 1913 mount for SIG, JMAC, PMM etc style stocks and braces.  Height: 1.7"Weight: 1.2oz    

HDA3 Brace to Stock Conversion

This part converts your HDA3 brace to a stock while maintaining all of the core components of your brace to include the aluminum spine, steel folding hinge, and cheek riser. Note: NFA rules apply. Ensure all conversions are done in compliance with...

CTR® 0.75" Cheek Riser

Clip on cheek riser for CTR, MOE®, DT, and PR Carbine stocks. Raises cheek weld 3/4 inch in height. This riser is typically for use on non AR15/M4 applications as the riser will interfere with charging handle function unless the stock is...

CTR® 0.50" Cheek Riser

Clip on cheek riser for CTR, MOE®, DT, and PR Carbine stocks. Raises cheek weld 1/2 inch in height. This riser is typically for use on non AR15/M4 applications as the riser will interfere with charging handle function unless the stock is...

CTR® 0.25" Cheek Riser

Clip on cheek riser for CTR, MOE®, DT, and PR Carbine stocks. Raises cheek weld 1/4 inch in height. This riser is typically for use on non AR15/M4 applications as the riser will interfere with charging handle function unless the stock is...

AK Cheek Riser-High

Tool-less clip-on cheek risers for the MOE AK and Zhukov-S Stocks. Raises the cheek weld .75" in height. Will not interfere with storage access on MOE Stock or the folding mechanism on the Zhukov-S Stock. Made in the USA. Available Sizes:1/4" Low - CLICK...

AK Cheek Riser- Medium

Tool-less clip-on cheek risers for the MOE AK and Zhukov-S Stocks. Raises the cheek weld .5" in height. Will not interfere with storage access on MOE Stock or the folding mechanism on the Zhukov-S Stock. Made in U.S.A. Available Sizes:1/4" Low - CLICK...

AK Cheek Riser- Low

Tool-less clip-on cheek risers for the MOE AK and Zhukov-S Stocks. Raises the cheek weld .25" in height. Will not interfere with storage access on MOE Stock or the folding mechanism on the Zhukov-S Stock. Made in the USA. Available Sizes:1/4" Low - CLICK...

ExoLock Stock/Brace System

STOCK SPECIFICATIONS: Length: 7.625-10.625" Weight: 1 lb  0.02 oz Mount Function: Folding - Right or Left - Straight Mount Height: 1.0" Mount Width: 1.375" BRACE SPECIFICATIONS: Length: 7.5-10.5" Weight: 13.8 oz (does not include brace) Mount...

Triangle Side Folding Stock

STOCK SPECIFICATIONS: Length: 9.375"  Weight: 1 lb 0.03 oz  Mount Function: Folding - Right or Left - Straight Mount Height: 1.32" Mount Width: 1.29" DESCRIPTION: Heavy-duty side-folding mechanism constructed from 4140 heat treated...

Minimalistic Side Folding Stock

STOCK SPECIFICATIONS: Length: 9.375"  Weight: 15.5 oz  Mount Function: Folding - Right or Left - Straight Mount Height: 1.32" Mount Width: 1.29" DESCRIPTION: Heavy-duty side-folding mechanism constructed from 4140 heat treated...

HDA3 Stock/Brace KRISS Vector Gen2

The HDA3 is a modular stock/brace system developed from a collaboration between Haga Defense and A3 Industries. The HDA3 was designed specifically to integrate seamlessly across dozens of firearm platforms without sacrificing strength or aesthetics to do...

HDA3 Stock/Brace for SCAR

***COMING SOON*** This HDA3 variant is in development and currently not set to be included on the original release. Check back later for updates or sign up on this product page to be notified when in stock.

HDA3 Stock/Brace without Adapter

The HDA3 is a modular stock/brace system developed from a collaboration between Haga Defense and A3 Industries. The HDA3 was designed specifically to integrate seamlessly across dozens of firearm platforms without sacrificing strength or aesthetics to do...

HDA3 Stock/Brace for UMP

***COMING SOON*** This HDA3 variant is in development and currently not set to be included on the original release. Check back later for updates or sign up on this product page to be notified when in stock.

HDA3 Stock/Brace for G36

***COMING SOON*** This HDA3 variant is in development and currently not set to be included on the original release. Check back later for updates or sign up on this product page to be notified when in stock.

HDA3 Stock/Brace for HK91/G3

The HDA3 is a modular stock/brace system developed from a collaboration between Haga Defense and A3 Industries. The HDA3 was designed specifically to integrate seamlessly across dozens of firearm platforms without sacrificing strength or aesthetics to do...

HDA3 Stock/Brace for SIG MCX-SPEAR LT

The HDA3 is a modular stock/brace system developed from a collaboration between Haga Defense and A3 Industries. The HDA3 was designed specifically to integrate seamlessly across dozens of firearm platforms without sacrificing strength or aesthetics to do...

HDA3 Stock/Brace for MP5 22lr

***COMING SOON*** This HDA3 variant is in development and currently not set to be included on the original release. Check back later for updates or sign up on this product page to be notified when in stock.

HDA3 Stock/Brace for MP5K

The HDA3 is a modular stock/brace system developed from a collaboration between Haga Defense and A3 Industries. The HDA3 was designed specifically to integrate seamlessly across dozens of firearm platforms without sacrificing strength or aesthetics to do...

HDA3 Stock/Brace for MP5

The HDA3 is a modular stock/brace system developed from a collaboration between Haga Defense and A3 Industries. The HDA3 was designed specifically to integrate seamlessly across dozens of firearm platforms without sacrificing strength or aesthetics to do...

HDA3 Stock/Brace for B&T APC (rifle caliber)

The HDA3 is a modular stock/brace system developed from a collaboration between Haga Defense and A3 Industries. The HDA3 was designed specifically to integrate seamlessly across dozens of firearm platforms without sacrificing strength or aesthetics to do...