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 - H&K HK MR762/417/G28 Ejection Cover Axle Spring - HKP-16753
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    HK417, MR762, G28 Ejection Cover Axle Spring

    H&K Heckler & Koch

    $9.95
    H&K HK MR762/417/G28 Ejection Cover Axle Spring New Hk German manufacture for the MR762 & HK 417 firearm. The spring is used on the axle and ejection port cover door to allow it to be closed and spring open. Compatible With: HK MR762 HK 417 HK...
    HKP-16753
    $9.95
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  • New - H&K HK 45C/45C Tactical Backstrap - Medium - Black - HKP-01617 HK45, HK45 Compact Tactical Backstrap - Medium
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    HK45, HK45 Compact Tactical Backstrap - Medium

    H&K Heckler & Koch

    $29.95
    HK45 Compact Back Strap Medium Compatible With: HK45 Compact HK45 Tactical
    HKP-01617
    $29.95
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  • New - HKP HK 45/45 Tactical Titanium Firing Pin - HKP-17811
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    HK45, HK45T Firing Pin - Titanium

    HKP HK Parts

    $49.95
    Firing Pin HK45 & HK45 Tactical - Titanium - Grade 6 A solid billet CNC offering at 40+% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time & enhancing accuracy. Titanium...
    HKP-17811
    $49.95
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  • New - H&K HK P7M8/P7M10/P7M13 Front Sight 6.8mm - HKP-01391
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    HK P7M8, P7M10, P7M13 Front Sight 6.8mm

    H&K Heckler & Koch

    $29.95
    Front Sight 6.8mm Compatible With: P7M8 P7M10 P7M13 Please Note: This is an incomplete front site as it does not have the sight insert.
    HKP-01391
    $29.95
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  • New - H&K HK P30L Recoil Rod Bushing Sleeve - HKP-02435 HK P30L Recoil Rod Bushing Sleeve
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    HK P30L Recoil Rod Bushing Sleeve

    H&K Heckler & Koch

    $39.95
    HK P30L Recoil Rod Bushing Sleeve Compatible With: HK P30L 9mm HK P30L .40
    HKP-02435
    $39.95
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  • Out Of Stock
    New - H&K HK P2000 9mm Recoil Spring Assembly - HKP-01559

    HK P2000 9mm Recoil Spring Assembly

    H&K Heckler & Koch

    $89.95
    HK P2000 9mm Recoil Spring Assembly  Spring guide rod with buffer complete. Compatible With: HK P2000 9mm
    HKP-01559
    $89.95
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  • New - Troy Industries Front Battle Sight - Black - HKP-00031 Battle Sight - Front
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    Battle Sight - Front

    Troy Industries

    $119.95
    Troy Industries Front Battle Sight Durability and dead-on accuracy have made the Troy Industries Front Folding Battle Sight one of the best choices for Special Ops and tactical users worldwide. Please Note: It will not work on a railed front gas block...
    HKP-00031
    $119.95
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  • New - HK 416 10.4" Upper Gas Block - German - HKP-01543 HK416 Gas Block for 10.4" Barrels
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    HK416 Gas Block for 10.4" Barrels

    H&K Heckler & Koch

    $279.95
    Heckler and Koch HK German 10.4" Barrel Non-Vented Gas Block Complete Factory HK NON-VENTED 10.4" gas block. Compatible With: HK416 10.4" uppers HK MR556 to 10.4" conversions
    HKP-01543
    $279.95
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  • New - HK G36/SL8 (5.56/.223) Bolt Head Ejector Pin - HKP-18372 HK G36, SL8 Bolt Head Ejector Pin
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    HK G36, SL8 Bolt Head Ejector Pin

    $6.95
    HK G36/SL8 (5.56/.223) Bolt Head Ejector Pin HK Ejector roll pin for G36, SL8 bolt heads. This item is the pin that holds the ejector & ejector spring in place. A common wear & replacement item and a must have when doing bolt head maintenance...
    HKP-18372
    $6.95
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  • New - HKP HK UMP (.40 S&W) 15 Round Magazine - HKP-17584 HK UMP Magazine - .40 S&W - 15 Round
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    HK UMP Magazine - .40 S&W - 15 Round

    HKP HK Parts

    $49.95
    UMP, SMG .40 Cal 15 Round Magazine - US Each ultra compact 15 round magazine will fit all HK UMP .40 caliber carbines, SMG's as well as the USC-UMP .40 caliberP conversions. Each magazine features, steel feed lips, enhanced polymer construction and all...
    HKP-17584
    $49.95
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  • New - HKP HK 91/G3 (7.62x51/.308) Complete Tungsten Full Auto Bolt Group - HKP-16249 HK91, G3 Complete Tungsten Full Auto Bolt Group
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    HK91, G3 Complete Tungsten Full Auto Bolt Group

    HKP HK Parts

    $549.95
    HKP HK 91/G3 (7.62x51/.308) Complete Tungsten Full Auto Bolt Group US Made HK 91/G3 Full Auto Bolt Group Complete - NEW Each bolt group is built using HK factory prints, specs here in the US. As an added bonus each bolt group counts as two US parts for...
    HKP-16249
    $549.95
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  • HK MP5K, SP89, SP5K AR M4 Adapter and Stock - 9mm HK MP5K, SP89, SP5K AR M4 Adapter and Stock - 9mm
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    HK MP5K, SP89, SP5K AR M4 Adapter and Stock - 9mm

    HKP HK Parts

    $229.95
    HK MP5K, MP5K-N AR Magpul Stock Each HK MP5K AR stock 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 AR stock adapter...
    HKP-17175
    $229.95
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    $229.95
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