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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  • On Sale
    New - SB Tactical HK MP5 Brace with HKP Brace/Stock Adapter - HKP-20214 HK MP5 Brace and Stock or Brace Adapter
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    HK MP5 Brace and Stock or Brace Adapter

    HKP HK Parts / SB Tactical

    Now: $269.95
    Was: $299.95
    SB Tactical HK MP5 Brace with HKP Brace/Stock Adapter Each brace comes assembled ready to install no assembly required. This complete brace will come assembled with our own HK Parts stock adapter. CNC machined aircraft grade aluminum with QD sling...
    Now: $269.95
    Was: $299.95
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    Now: $269.95
    Was: $299.95
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  • On Sale
    New - JMAC Universal Picatinny 8" Arm Bar with Brace/Stock Adapter - HKP-21247 Arm Bar and Stock or Brace - Picatinny 8"
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    Arm Bar and Stock or Brace - Picatinny 8"

    JMAC Customs

    Now: $251.87
    Was: $279.85
    JMAC Universal Picatinny 8" Arm Bar with Brace/Stock Adapter (A)rm(B)ar(8)inch(R)ise + AB-BA Brace Adapter + our 1913 Folding Mech (not assembled) Features: Modular Design - Brace/Stock with many mounting options Integrated QD Sling Socket 8"...
    Now: $251.87
    Was: $279.85
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    Now: $251.87
    Was: $279.85
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  • On Sale
    New - HDPS HK SL8 Conversion Stock Block - HKP-00807 HK SL8 to G36 Stock Block - Conversion - Pull Pin
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    HK SL8 to G36 Stock Block - Conversion - Pull Pin

    HDPS

    Now: $350.95
    Was: $389.95
    HDPS SL8 To G36 Stock Block This is the latest generation of a stock block with the pull pin, NOT the older style with the sling eyelets. The HDPS SL8 to G36 conversion stock block comes complete and includes a built-in buffer recoil rod, housing, steel...
    Now: $350.95
    Was: $389.95
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    Now: $350.95
    Was: $389.95
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  • On Sale
    New - F5 MFG HK MP5 .22LR Modular Stock System - Black - HKP-20196 F5 MFG HK MP5 .22LR Modular Stock System
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    F5 MFG HK MP5 .22LR Modular Stock System

    F5 MFG

    Now: $314.95
    Was: $349.95
    Modular Stock System with MP5 .22 Adapter  Features: HK MP5 22 compatible adapter 6061 AL and nylon 6/6 polymer construction Integrated locking hinge Adjustable cheekwell 7 adjustable length positions 3in length of pull
    Now: $314.95
    Was: $349.95
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    Now: $314.95
    Was: $349.95
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  • On Sale
    New - Modular Folding Stock System - HK MP5, SP5 - HKP-19484 Modular Folding Stock System - HK MP5, SP5
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    Modular Folding Stock System - HK MP5, SP5

    F5 MFG

    Now: $404.95
    Was: $449.95
    Modular Folding Stock System - HK MP5 The telescoping, left side-folding polymer stock is fully adjustable for comb height and length of pull, making it a versatile option for the most advanced applications. Features: MP5 adapter machined from 6061...
    Now: $404.95
    Was: $449.95
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    Now: $404.95
    Was: $449.95
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  • On Sale
    New - SB Tactical HK MP5 SBA3 5 Position Adjustable Stabilizing Brace - Black - HKP-20276 HK MP5 Pistol Stabilizing Brace- SBA3 - 5 Position Adjustable
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    HK MP5 Pistol Stabilizing Brace- SBA3 - 5 Position Adjustable

    SB Tactical

    Now: $242.95
    Was: $269.95
    SBA3 - 5 Position Adjustable Stabilizing Brace - MP5 The perfect addition to your firearm with the ability to adjust length with its 5-position adjustable buffer tube. Dramatically enhances versatility, and features a minimalist design with an integral,...
    Now: $242.95
    Was: $269.95
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    Now: $242.95
    Was: $269.95
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  • On Sale
    New - SB Tactical Pistol HK93/33/53 SBA4 Stabilizing Brace & Adapter - HKP-19929 HK33, HK53, HK93 Pistol Stabilizing Brace - SBA4 - Adapter Included
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    HK33, HK53, HK93 Pistol Stabilizing Brace - SBA4 - Adapter Included

    SB Tactical

    Now: $265.45
    Was: $294.95
    SB Tactical Pistol HK93/33/53 SBA4 Stabilizing Brace & Adapter Designed for all platforms capable of accepting a mil-spec carbine receiver extension, the SBA4 is 5-position adjustable and features an integral, ambidextrous QD sling socket...
    Now: $265.45
    Was: $294.95
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    Now: $265.45
    Was: $294.95
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  • New - H&K HK 416/MR556 Commercial Factory German E2 Rear Stock - Black - HKP-18360 HK416, MR556 Commercial Factory German E2 Stock
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    HK416, MR556 Commercial Factory German E2 Stock

    H&K Heckler & Koch

    $249.95
    HK416, MR556 Factory German E2 Stock - Commercial HK German Stock For All HK 416, MR556 Rifles The HKE2 Buttstock fits Commercial buffer tubes (receiver extensions) for M4/AR15 type weapons and has the concave style removable buttpad installed...
    $249.95
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    $249.95
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  • On Sale
    New - Magpul HK G3 / HK 91 PRS Gen 3 Stock - HKP-21172-M HK91, G3 Stock - PRS Gen 3
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    HK91, G3 Stock - PRS Gen 3

    Magpul

    Now: $386.95
    Was: $429.95
    Magpul HK G3 / HK 91 PRS Gen 3 Stock - Available in Multiple Color Options  The PRS GEN3 is a field precision stock for AR15/M16 and AR10/SR25 platforms, featuring tool-less length of pull and cheek piece height adjustment. With solid adjustments...
    Now: $386.95
    Was: $429.95
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    Now: $386.95
    Was: $429.95
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  • Used - H&K 91/G3 (7.62x51/.308) Complete Fixed Stock with Enhanced Heavy Buffer- Black - Surplus - HKP-16269
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    HK91, G3 Complete Fixed Stock with Enhanced Heavy Buffer- Black - Surplus

    H&K Heckler & Koch

    $269.95
    German G3, 91, PTR Stock complete - Surplus Used black German surplus stock complete. Ready to install on your HK or clone rifle. Used in perfect working condition and each stock includes all parts to be a complete stock ready to use on your HK G3, 91,...
    $269.95
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    $269.95
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  • On Sale
    New - MM HK93/33/53 Club Foot Stock - HKP-01455 MM HK93/33/53 Club Foot Stock
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    MM HK93/33/53 Club Foot Stock

    Michaels Machines

    Now: $284.36
    Was: $315.95
    MM HK93/33/53 Club Foot Stock This clubfoot ships assembled with a mix of German and US-made parts. Compatible With: HK 93 HK 53 HK 33 Includes: MM 21E Clubfoot Central Stock Section - US Made US Heavy Rubber Buttpad - US Made HK G3 to HK93 /33 Back...
    Now: $284.36
    Was: $315.95
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    Now: $284.36
    Was: $315.95
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  • On Sale
    New - Kinetic Development Group HK USC Conversion to ACR Stock Upgrade - FDE - HKP-19845 Kinetic Development Group HK USC Conversion to ACR Stock Upgrade - FDE
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    Kinetic Development Group HK USC Conversion to ACR Stock Upgrade - FDE

    Now: $413.95
    Was: $459.95
    HK USC-UMP ACR Stock Adapter & ACR Stock Combo - Brown A new product that allows you to add the widely popular Remington ACR folding, adjustable stock to your USC-UMP conversion. Each unit comes complete with the ACR stock, hinge pin, sling mount and...
    Now: $413.95
    Was: $459.95
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    Now: $413.95
    Was: $459.95
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