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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  • HK91, G3 Backplate Assembly - Used FMP HK CONTRACT HKP-22374-USED HK91, G3 Backplate Assembly - Used FMP HK CONTRACT HKP-22374-USED
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    HK91, G3 Backplate Assembly - Surplus

    FMP HK CONTRACT

    $14.95
    FMP HK91, G3 Backplate Assembly - Used/Surplus G3 surplus backplate assembly manufactured by FMP on HK tooling. Compatible With: HK G3, HK91
    HKP-22374
    $14.95
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    New - H&K HK MR556/416 Enhanced Buffer Tube - Tan - HKP-22086 HK416, MR556 Enhanced Buffer Tube - Tan
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    HK416, MR556 Enhanced Buffer Tube - Tan

    H&K Heckler & Koch

    $192.95
    Tan HK 416, MR556 OTB (over the beach) Buffer Tube, Receiver Extension - Commercial Genuine HK German-manufactured 416 & MR556 latest generation, marine environment & and over-the-beach buffer tube. Each commercial buffer tube features built-in...
    HKP-22086
    $192.95
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    $192.95
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    New - B&T MBT Folding Stock for APC9/40/45 - Includes Hydraulic Buffer - HKP-21749 B&T APC9, 40, 45 MBT Folding Stock - Includes Hydraulic Buffer
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    B&T APC9, 40, 45 MBT Folding Stock - Includes Hydraulic Buffer

    B&T Brugger & Thomet

    $625.00
    B&T MBT folding stock for APC 9/40/45. Polymer stock and adapter with hydraulic buffer included.  Features: 8-position length adjustment Telescoping cheek riser with 3-position height adjustment Folds to the right canted downward 3.5...
    HKP-21749
    $625.00
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    $625.00
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    New - B&T GHM9/45 Stock Telescopic - HKP-21722 B&T GHM9/45 Stock Telescopic
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    B&T GHM9/45 Stock Telescopic

    B&T Brugger & Thomet

    $510.00
    B&T Stock Telescopic for GHM9/45 Factory B&T 3-position telescopic stock for the GHM9 and GHM45 platforms. Compatible With: B&T GHM9/GHM45
    HKP-21722
    $510.00
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    $510.00
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  • New - Magpul HK SP5 Adapter Brace with Stock - HKP-21411-M HK SP5 Stock With Direct Fit Adapter
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    HK SP5 Stock With Direct Fit Adapter

    Magpul

    $189.95
    HK SP5 Stock With Direct Fit Adapter SP5 DT Magpul stock ready to drop in on any in-spec SP5 receiver or clone. We take our AR SP5 Adapter and attach it onto a mil-spec buffer tube. We then drop it on to the new Magpul DT Carbine stock. This is a great...
    HKP-21411-M
    $189.95
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  • New - Magpul HK MP5, HK94, HK93 MOE SL-K Stock - Black - HKP-20490 HK MP5, HK93 Stock - MOE SL
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    HK MP5, HK93 Stock - MOE SL

    Magpul

    $189.95
    Magpul HK MP5, HK94, HK93 MOE SL-K Stock Magpul MOE SL-K MP5 ,HK 94, HK93 complete stock ready to drop in. Great option for those looking for different length options. Sleek and perfectly designed. The SL-K is designed for compact PDW style weapons or...
    HKP-20490
    $189.95
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    New - H&K HK 416 Commercial OTB Buffer Tube HK E1 Stock Combo - Black - hkp-18361 HK416 E1 Buttstock and Buffer Tube Combo - Commercial OTB
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    HK416 E1 Buttstock and Buffer Tube Combo - Commercial OTB

    H&K Heckler & Koch

    Now: $392.95
    Was: $469.95
    Heckler and Koch's E1 Buttstock and OTB Buffer Tube Combo - Commercial for HK416 Genuine HK416 E1 commercial buttstock with the new style marine environment "over the beach" buffer tube. Buffer tube has ball bearing rollers to tighten the buttstock...
    HKP-18361
    Now: $392.95
    Was: $469.95
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    Now: $392.95
    Was: $469.95
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  • Out Of Stock
    New - HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B - Push Pin - HKP-16339 HK UMP, USC Stock Block B Sling Pin - Push Pin Style
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    HK UMP, USC Stock Block B Sling Pin - Push Pin Style

    HDPS

    $39.95
    HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B - Push Pin This sling pin will replace the current production stock Block B hardware and upgrade to the Sling Pin Pull Style version.
    HKP-16339
    $39.95
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    $39.95
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  • Out Of Stock
    New - H&K MP5 A3 Retractable Stock Sling Attachment Bar- Weldable - HKP-17427 HK MP5 A3 Retractable Buttstock Sling Attachment Bar - Weldable
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    HK MP5 A3 Retractable Buttstock Sling Attachment Bar - Weldable

    H&K Heckler & Koch

    $9.95
    HK MP5 A3 Retractable Stock Sling Bar This part offering is a factory German HK part new unpainted and ready to weld to your application. Can also be used for upgrading a non-ambi stock to an ambi stock by attaching the sling bar to the A3 stock...
    HKP-17427
    $9.95
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    $9.95
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  • HK MP5, MP5K Folding Stock or Brace - HDA3 HK MP5, MP5K Folding Stock or Brace - HDA3
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    HK MP5, MP5K Folding Stock or Brace - HDA3

    Haga Defense

    $349.95
    HDA3 Stock and Brace for MP5K, SP5K 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...
    HKP-22355-M
    $349.95
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    $349.95
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  • New - SB Tactical SBA3 5 Position Adjustable Stabilizing Brace - HKP-21927 HK416, MR556 Stabilizing Brace - SBA3 5 Position Adjustable
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    HK416, MR556 Stabilizing Brace - SBA3 5 Position Adjustable

    SB Tactical

    $109.95
    SB Tactical SBA3 5 Position Adjustable Stabilizing Brace The SBA3™ is a minimalist, 5-position adjustable stabilizing brace designed for platforms that accept a mil-spec carbine receiver extension (not included). It features an integral...
    HKP-21927
    $109.95
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    $109.95
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  • New - Strike Industries HK MP5 9mm Dual Folding Stock w/ Adapter - HKP-21768-M HK MP5 Dual Folding Stock with Adapter - 9mm
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    HK MP5 Dual Folding Stock with Adapter - 9mm

    HKP HK Parts / Strike Industries

    $319.95
    HKP HK Parts and Strike Industries 9mm Dual Folding Stock with Adapter for HK MP5  The Strike Industries Dual Folding Stock paired with the HKP MP5 picatinny adapter is one of the best options on the market for those looking for a light,...
    HKP-21768-M
    $319.95
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    $319.95
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