Stocks / Braces / Slings

Stocks / Braces / Slings

Explore our premium selection of HK-specific stocks, braces, and slings at HKParts, designed to enhance comfort and functionality for a variety of HK models. Our offerings include adjustable braces, tactical slings, and folding stocks, perfect for upgrading your HK MP5, HK416, or UMP. Whether for tactical use or recreational shooting, our durable and versatile accessories provide superior firearm support and stability.

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  • New - JMAC Customs TS-8 w/ 1913 Folding Mech - HKP-20145 Triangle Stock - TS-8 with 1913 Folding Mech
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    Triangle Stock - TS-8 with 1913 Folding Mech

    JMAC Customs

    $284.99
    JMAC Customs TS-8 w/ 1913 Folding Mech Triangle stock 8" with our 1913 folding mech (not assembled) 2x integrated QD sling socket 8" length Drilled and tapped for optional cheek risers (will be available in the future) Compatible with SIG folding...
    $284.99
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  • New - B&T HK MP5K 3-Position Folding Adjustable Stock - Black - HKP-18243 HK MP5K 3-Position Folding Adjustable Stock
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    HK MP5K 3-Position Folding Adjustable Stock

    B&T Brugger & Thomet

    $494.95
    B&T HK MP5K 3-Position Folding Adjustable Stock Swiss made B&T folding and length adjustable stock for the HK MP5K and compatible. This is a military grade stock as supplied by B&T to military and law enforcement units world-wide. B&T AG...
    $494.95
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  • New - H&K HK MR556/MR762 Buttstock Release Lever Insert - HKP-16620 HK MR556, MR762 Buttstock Release Lever Insert
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    HK MR556, MR762 Buttstock Release Lever Insert

    H&K Heckler & Koch

    $26.95
    H&K HK MR556/MR762 Buttstock Release Lever Insert Compatible With: HK MR556 HK MR762
    $26.95
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    $26.95
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  • HK51, PTR PDW Stock - AR15 Style
HK51, PTR PDW Stock - AR15 Style
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    HK51, PTR PDW Stock - AR15 Style

    PTR

    $339.95
    HK51, PTR PDW Magpul Stock - AR-15 Style AR15/M16 to HK 90 series stock adapter for the HK51 and PTR PDW. This is a perfect compliment for those that want to use the popular Magpul Moe stock. Each adapter includes the proprietary locking ring, Magpul MOE...
    $339.95
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  • New - HKP ACE Adapter for HK MP5, 93, 33 - HKP-18504 HKP ACE Adapter for HK MP5, 93, 33
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    HKP ACE Adapter for HK MP5, 93, 33

    HKP HK Parts

    $99.95
    ACE Adapter for HK MP5 and HK 93 Each ACE adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct "H" buffers to protect your expensive firearm. This is the finest ACE adapter available period...
    $99.95
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  • HK MP5 Folding Stock or Brace - HDA3 HK MP5 Folding Stock or Brace - HDA3
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    HK MP5 Folding Stock or Brace - HDA3

    Haga Defense

    $349.95
    HDA3 Stock and Brace System for HK MP5, SP5 The HDA3 is a modular, USA-made stock and brace system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth...
    $349.95
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  • Used - H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - New Old Stock - HKP-22102 HK91, G3 Slimline Handguard - Jungle Green - New Old Stock
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    HK91, G3 Slimline Handguard - Jungle Green - New Old Stock

    H&K Heckler & Koch

    $39.95
    H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - New Old Stock These are a nice addition to the collection. Compatible With: All full forearm length HK 91, G3, PTR style firearms
    $39.95
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  • Out Of Stock
    New - H&K MP5K/SP89/SP5K 9mm Incomplete End Cap - HKP-18208 HK MP5K/SP89/SP5K 9mm Incomplete End Cap

    HK MP5K/SP89/SP5K 9mm Incomplete End Cap

    H&K Heckler & Koch

    $0.00
    HK Factory German MP5K, SP-89, SP5K End Cap - Incomplete Each pistol end cap is OEM HK German MP5K, MP5K-N, SP5K, SP89 stripped end cap.  Compatible With: MP5K SP89 SP5K MP5K-N MP5K-PDW MP5K clones or other custom builds
    $0.00
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  • New - H&K MP5 A3 Rear Stock Fork Section With Buttpad - HKP-01044
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    HK MP5 A3 Stock Fork Section With Buttpad

    H&K Heckler & Koch

    $429.95
    H&K MP5 A3 Stock Fork Section With Buttpad A common repair item as the buttpad can crack or break off with time or hard use. A hard-to-find item, available here at HK Parts. For use with new style A3 German stocks, NOT the older style stocks...
    $429.95
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    $429.95
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  • Out Of Stock
    New - HK Ambidextrous Sling - Green - HKP-00183

    HK Ambidextrous Sling - Green

    H&K Heckler & Koch

    $149.95
    HK Ambidextrous Sling - Green  This sling is the factory HK Green 1.25" Ambi Sling with dual HK sling hooks for use on either the left or right side of the weapon. Best used with the ambi sling pins as the option shown below. Can be used on nearly...
    $149.95
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    $149.95
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  • HK33, HK93 Buttstock - A2 - Black HK33, HK93 Buttstock - A2 - Black
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    HK33, HK93 Buttstock - A2 - Black

    $74.95
    Malaysian Contract Black A2 Stock for HK33, HK93 Malaysian contract black A2 fixed stock for HK33 or HK93 pattern rifles. Ideal as a correct-style replacement stock or to give your 5.56 roller-lock build a classic fixed-stock profile. Compatible...
    $74.95
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  • F5 HK MP5 ACR Stock - Picatinny Mount F5 MFG HKP-22350-M HK MP5, SP5 ACR Folding Stock with Adapter - Picatinny
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    HK MP5, SP5 ACR Folding Stock with Adapter - Picatinny

    F5 MFG

    $314.95
    F5 HK MP5/SP5 ACR Folding Stock w/Adapter - Picatinny The HKP picatinny end cap with the F5 ACR stock allows users to easily swap this, and other stocks, between their MP5 and other platforms.  This drop-in ready assembly attaches with the MP5's...
    $314.95
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