Parts

Parts

At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.

Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.

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  • New - HKP MP5 .22LR Picatinny Rail Brace/Stock Adapter - HKP-21526 HK MP5 Stock or Brace Adapter - .22LR - Picatinny Rail
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    HK MP5 Stock or Brace Adapter - .22LR - Picatinny Rail

    HKP HK Parts

    $134.95
    HKP MP5 .22LR Picatinny Rail Brace/Stock Adapter Our rail stock adapter enables seamless attachment of any 1913 Style Stock or brace to your MP5.22. The 1913 style stocks & braces firmly lock in place, offering superior cheek weld height compared to...
    HKP-21526
    $134.95
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  • New - Comp-Tac HK VP9SK DCH Comp Carry Holster - HKP-20072-M HK VP9SK Holster - DCH Comp Carry
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    HK VP9SK Holster - DCH Comp Carry

    Comp-Tac

    $79.95
    Comp-Tac HK VP9SK DCH Comp Carry Holster The dual concealment holster, or the "DCH", is the best solution for users who need versatility in their carry methods. This holster offers both IWB (inside-the-waistband) and OWB (outside-the-waistband) options...
    HKP-20072-M
    $79.95
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    $79.95
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  • New - GSG9 HK G36, HK G36K Folding Stock - Black - HKP-18219 GSG9 HK G36, HK G36K Folding Stock
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    GSG9 HK G36, HK G36K Folding Stock

    GSG9

    $115.00
    HK G36 Full Length Stock HK G36 10.5" Stock complete for G36 firearms. The G36/G36K stock is the longest stock option for the G36 family of firearms. For those that would like a shorter stock choose the G36C length stock. Each stock comes complete with...
    HKP-18219
    $115.00
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    $115.00
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  • New - Strike Industries 22 Round HK VP9 9mm Magazine - Black - HKP-19608 HK VP9 Magazine - 9mm - 22 Round
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    HK VP9 Magazine - 9mm - 22 Round

    Strike Industries

    $69.95
    Strike Industries 22 Round HK VP9 9mm Magazine Strike Industries +5 magazine extension coupled with a 17 round factory German magazine body adds 5 additional rounds total for a fully assembled 22 round HK VP9.  Each mag comes fully assembled and...
    HKP-19608
    $69.95
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  • New - H&K HK MR762/417 Bench Mat - HKP-17170 HK417, MR762 Bench Mat
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    HK417, MR762 Bench Mat

    HKP HK Parts

    $24.95
    HK MR762, HK 417 Bench Mat Our HK MR762, HK417 bench mat is the perfect cleaning & repair mat designed specifically for your Heckler & Koch MR762 & HK417 models. Have fun and learn while you work on your favorite H&K firearm. The soft top...
    HKP-17170
    $24.95
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    $24.95
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  • New - H&K HK 45/45C Trigger Rebound Spring - HKP-01812
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    HK45, HK45 Compact Trigger Rebound Spring

    H&K Heckler & Koch

    $8.95
    HK45 Trigger Rebound Spring This part is also known as the trigger return spring. Compatible With: HK45 HK Tactical HK45 Compact HK45 Compact Tactical
    HKP-01812
    $8.95
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  • Out Of Stock
    New - H&K HK MR556/MR762/416/417/AR-15 Selector Detent Spring - HKP-02657

    HK416, HK417, MR556, MR762, AR-15 Selector Detent Spring

    H&K Heckler & Koch

    $9.99
    H&K HK MR556/MR762/416/417/AR15 Selector Detent Spring HK German manufacture. Compatible With: HK MR556 HK 416 HK MR762 HK 417 AR15, M4 & M16
    HKP-02657
    $9.99
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  • New - H&K/HKP HK MP5 .22 A2 Stock - HKP-21937-M HK/HKP HK MP5 .22 A2 Stock
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    HK/HKP HK MP5 .22 A2 Stock

    HKP HK Parts / Heckler & Koch

    $179.95
    H&K/HKP HK MP5 .22 A2 Stock Upgrade your HK MP5 .22 rifle with the precision-engineered A2 fixed stock from H&K & HK Parts. Designed specifically for the .22 LR, this stock provides a solid, stable shooting engagement while maintaining the...
    HKP-21937-M
    $179.95
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  • New - B&T GHM9 Telescoping Brace/Stock Adapter - Black - HKP-18946 B&T GHM9 Stock or Brace Adapter - Telescopic
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    B&T GHM9 Stock or Brace Adapter - Telescopic

    B&T Brugger & Thomet

    $510.00
    B&T GHM9 Telescopic Brace/Stock Adapter Switzerland manufactured telescopic brace adaptor for Gearhead Works Tailhook MOD 1. Tailhook is not included. ***Stabilizing braces sold by HK Parts are designed and intended for the exclusive application as a...
    HKP-18946
    $510.00
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    $510.00
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  • New - LSC/PTR Receiver Flat- MP5 9mm - HKP-01431 HK MP5 Receiver Flat- 9mm
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    HK MP5 Receiver Flat- 9mm

    LSC

    $239.95
    MP5 Receiver Flat - PTR/LSC New PTR 9mm Receiver Flat made on the original LSC tooling. This flat is considered by many to be the most sought-after HK flat available on the market and perfect for that HK custom build. This item is not considered an FFL...
    HKP-01431
    $239.95
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  • On Sale
    New - HKP .40 S&W Tactical Thread Protector - Threaded 14.5x1 LH - HKP-00298 Thread Protector - .40 S&W - Tactical - 14.5x1 LH
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    Thread Protector - .40 S&W - Tactical - 14.5x1 LH

    HKP HK Parts

    Now: $11.95
    Was: $24.95
    HKP .40 S&W Tactical Thread Protector - Threaded 14.5x1 LH Fits all HK barrels that are threaded 14.5x1 LH. This is the correct thread protector for all the HK .40 S&W metric threaded barrels. This will also fit non HK related barrels as well...
    HKP-00298
    Now: $11.95
    Was: $24.95
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    Now: $11.95
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  • New - H&K HK MR556/416 Vented Slimline Gas Block - HKP-02660 HK416, MR556 Gas Block - Slimline - Vented
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    HK416, MR556 Gas Block - Slimline - Vented

    H&K Heckler & Koch

    $145.95
    Heckler and Koch Low Profile Complete Gas Block for HK MR556, HK416, HK German Factory slimline, low-profile gas block for the HK416 and HK MR556. This is the factory-correct gas block found on the MR556. Correct gas block to use with...
    HKP-02660
    $145.95
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    $145.95
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