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 - Bore Boss Pull-Through Bore Cleaner - 5.56mm/.223 - HKP-19402 Bore Boss Pull-Through Bore Cleaner - 5.56 / .223
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    Bore Boss Pull-Through Bore Cleaner - 5.56 / .223

    Real Avid

    $10.95
    Real Avid Bore Boss Pull-Through Bore Cleaner - 5.56mm/.223 From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece...
    HKP-19402
    $10.95
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    $10.95
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  • On Sale
    New - HKP HK 416/COLT M4 .22 20 Round Magazine Spring - HKP-14410
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    HK416, COLT M4 Magazine Spring - .22LR - 20 Round

    HKP HK Parts

    Now: $1.95
    Was: $3.95
    HKP 20 Round HK416 .22LR and Colt M4 .22LR Magazine Spring A good supply of spare mag springs is a must. These are ideal to have on hand as the spring can become damaged or worn out. New production mag spring for your Umarex HK416 & Colt 20 round 22...
    HKP-14410
    Now: $1.95
    Was: $3.95
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    Now: $1.95
    Was: $3.95
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  • New - H&K HK USPC .40 S&W Recoil Rod Assembly - HKP-01479 HK USPC .40 S&W Recoil Rod Assembly
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    HK USPC .40 S&W Recoil Rod Assembly

    H&K Heckler & Koch

    $89.95
    Recoil Spring Guide Rod Assembly Complete For The HK USP Compact 40 Cal & .357 SIG New HK German factory part. This is a great spare or replacement item to have on hand. Compatible With: HK USP Compact 40 Cal HK USP Compact .357 SIG
    HKP-01479
    $89.95
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  • New - MGW HK USP Series/P Series/45 Series Universal Range Master Sight Tool - HKP-02084 HK USP, P30, HK45, P2000 Range Master Sight Tool
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    HK USP, P30, HK45, P2000 Range Master Sight Tool

    MGW

    $249.95
    Range Master Universal Sight tool for - HK USP, HK45/C, P30 & P2000 Models The Range Master Compact Universal Sight Tool is designed to remove, install, and adjust front and rear dovetail sights on semi-automatic handguns. The benefit of...
    HKP-02084
    $249.95
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  • New - H&K HK MR556/MR762/416/417 Pistol Grip Screw - HKP-02679
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    HK416, MR556, HK417, MR762 Pistol Grip Screw

    H&K Heckler & Koch

    $9.95
    H&K HK MR556/MR762/416/417 Pistol Grip Screw This is the screw used to retail all battle grips/pistol grips on the HK and standard AR15 and M16 firearms. Compatible With: HK MR556 HK416 HK MR762 HK417
    HKP-02679
    $9.95
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  • New - H&K HK 416/417/MR556/MR762 Bridge - HKP-02676 HK416, MR556, HK417, MR762 Bridge
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    HK416, MR556, HK417, MR762 Bridge

    H&K Heckler & Koch

    $24.95
    Heckler and Koch HK416, HK MR556, HK417, and MR762 Bridge For Lowers Compatible With: HK416, MR556 HK417, MR762
    HKP-02676
    $24.95
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    $24.95
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  • 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

    $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...
    HKP-00807
    $389.95
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  • New - H&K UMP (.40 S&W/.45 ACP/9mm) Magazine Release Axle - HKP-02159 HK UMP Magazine Release Axle
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    HK UMP Magazine Release Axle

    H&K Heckler & Koch

    $19.95
    HK UMP Magazine Release Axle  
    HKP-02159
    $19.95
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  • Used - HKP MP5 9mm SEF Style 0,1 Trigger Pack - Safe, Semi Only - HKP-00152 HK MP5 Trigger Pack - 9mm - SEF Style 0,1 - Safe, Semi
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    HK MP5 Trigger Pack - 9mm - SEF Style 0,1 - Safe, Semi

    HKP HK Parts

    $359.95
    HKP/H&K MP5/K 9mm SEF Semi-Auto Complete Trigger Pack We have one of the best HK gunsmiths in the country that can take hand-picked German HK F/A trigger packs and modify them to semi-auto. This is done with the best and most precise machinery and...
    HKP-00152
    $359.95
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    $359.95
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  • New - HKP HK VP9SK Low Profile Magwell - HKP-21456-M HK VP9SK Magwell - Low Profile
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    HK VP9SK Magwell - Low Profile

    HKP HK Parts

    $59.95
    HKP HK VP9SK Low Profile Magwell  Low profile, every day carry magwell for the HK VP9SK pistol. For those that would like the enhancements and competitive advantage a mag well offers without the bulk of the larger competition magwell. Funnels mags...
    HKP-21456-M
    $59.95
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  • New - HKP HK MP5 Binary SL Selectors - HKP-21438 HK MP5 Binary SL Selectors
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    HK MP5 Binary SL Selectors

    HKP HK Parts

    $69.95
    HKP HK MP5 Binary SL Selectors: Our selectors were made to work specifically with the Magpul SL housing in conjunction with the popular Franklin Armory Binary trigger pack. We aimed to keep the same aesthetics as our SEF style binary selector levers but...
    HKP-21438
    $69.95
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  • New - RCM HK MP5K Semi Auto Carrier - HKP-20982 HK MP5K Bolt Carrier - Semi Auto
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    HK MP5K Bolt Carrier - Semi Auto

    RCM

    $146.95
    RCM HK MP5K Semi Auto Carrier MP5K, SP89 semi-auto carrier machined completely from billet ordnance steel. RCM's US made MP5K carrier is made to the most updated and latest MP5K  specs and more. Tungsten filled, heat treated, phosphate finish and...
    HKP-20982
    $146.95
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    $146.95
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