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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  • Out Of Stock
    New - H&K 10 Round HK USPC .357 SIG Flat Floorplate Magazine - Black - HKP-02363 HK USPC Magazine - 10 Round - .357 SIG - Flat Floorplate

    HK USPC Magazine - 10 Round - .357 SIG - Flat Floorplate

    H&K Heckler & Koch

    $49.00
    HK USP Compact 357 10 Round Magazine With Flat Floorplate 
    HKP-02363
    $49.00
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    $49.00
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  • On Sale
    New - B&T HK G36/SL8 (5.56/.223) Mounting Rail - HKP-16867 HK G36, SL8 Optic Mount, Carry Handles
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    HK G36, SL8 Optic Mount, Carry Handles

    B&T Brugger & Thomet

    Now: $118.95
    Was: $139.95
    B&T HK G36/SL8 Optic Mounting Rail B&T optic mounting rail for HK G36, SL8 HK carry handles, Spanish Military version.  Specifications: Height: 23.7 mm Width: 26.9 mm Weight: 113 g Material: Aluminum Treatment: Hardcoat anodized
    HKP-16867
    Now: $118.95
    Was: $139.95
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    Was: $139.95
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  • Out Of Stock
    New - HDPS HK UMP (.40 S&W/.45 ACP) Birdcage Flash Hider - HKP-02694 HK UMP Birdcage Flash Hider

    HK UMP Birdcage Flash Hider

    HDPS

    $154.95
    HDPS HK UMP (.40 S&W/.45 ACP) Birdcage Flash Hider This part is made to fit all US-made or German HK-flanged style barrels. HK no longer makes a flash hider for the UMP Subgun. This is the much anticipated HDPS bird cage style UMP...
    HKP-02694
    $154.95
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    $154.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Hammer Spring - Right - HKP-01892
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    HK UMP, USC Hammer Spring - Right

    H&K Heckler & Koch

    $14.95
    HK UMP & USC Right Side Hammer Spring For Lowers
    HKP-01892
    $14.95
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    $14.95
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  • Out Of Stock
    New - H&K 21 (7.62x51/.308) Countersunk Screw - 6x12MM - HKP-16424

    HK21 Countersunk Screw - 6x12mm

    H&K Heckler & Koch

    $4.95
    HK 21 Countersunk Screw - 6x12MM
    HKP-16424
    $4.95
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    $4.95
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  • On Sale
    New - HKP HK 91/G3 (7.62x51/.308) Ambidextrous Trigger Pack (0,1) - HKP-17232 HK91, G3 Trigger Pack - Ambi 0,1
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    HK91, G3 Trigger Pack - Ambi 0,1

    HKP HK Parts

    Now: $289.95
    Was: $362.95
    HK Parts and Heckler and Koch 2 Position 0,1 Ambidextrous Trigger Pack for HK91, and HK G3 Finally, a lower cost alternative to the expensive and rare all-German FBI and 0,1 ambi trigger packs.  Each trigger pack comes 100% complete, ready to use...
    HKP-17232
    Now: $289.95
    Was: $362.95
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    Now: $289.95
    Was: $362.95
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  • On Sale
    New - HK 91/G3 (7.62x51/.308) Bolt Head - Stripped - HKP-16636 HK91, G3 Bolt Head - Stripped
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    HK91, G3 Bolt Head - Stripped

    Now: $76.95
    Was: $96.95
    New US Made Bolt Head- Incomplete: CNC machined from HK blueprints to precise tolerances that use the proper steel and heat-treat processes. You WILL NOT find a better quality offering of HK Parts anywhere. All of the bolt heads we offer on our website...
    HKP-16636
    Now: $76.95
    Was: $96.95
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    Was: $96.95
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  • New - H&K Fixed Stock Buttpad - Alpine Green - HKP-17027 HK Fixed Buttstock Buttpad - Alpine Green
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    HK Fixed Buttstock Buttpad - Alpine Green

    H&K Heckler & Koch

    $79.95
    H&K Fixed Stock Buttpad - Alpine Green Perfect for A2 G3, 91, PTR91 & HK33, 53, 93 fixed stocks. This is a factory German brand new in HK wrapping German part.
    HKP-17027
    $79.95
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  • On Sale
    New - H&K 93/53/33 (5.56/.223) 4 Position Trigger Goup Complete (0,1,3,F) - HKP-00018 HK33, HK53, HK93 Trigger Group - 4 Position 0,1,3,F - Complete
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    HK33, HK53, HK93 Trigger Group - 4 Position 0,1,3,F - Complete

    H&K Heckler & Koch

    Now: $2,989.95
    Was: $3,399.95
    Heckler and Koch HK33, HK53, HK93 4 Position Burst Trigger Group Complete (0,1,3,F) Factory German HK 4-position burst trigger group configured for push-pin style receivers. This complete assembly is designed for HK93, HK33, and HK53 platforms and...
    HKP-00018
    Now: $2,989.95
    Was: $3,399.95
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  • On Sale
    New - HK MP5K .40 S&W 3-Lug Barrel Thread Protector - Threaded 9/16x24 - HKP-02318 HK MP5K Barrel - .40 S&W - Threaded 9/16x24 with 3 Lug
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    HK MP5K Barrel - .40 S&W - Threaded 9/16x24 with 3 Lug

    HKP HK Parts

    Now: $199.95
    Was: $299.95
    HK MP5K .40 S&W 3-Lug Barrel with Thread Protector - Threaded 9/16x24 3-lugged Barrel with a 9/16x24 thread protector.  Specifications: 3-lugged barrel Includes 9/16x24 thread protector Compatible With: HK MP5K .40 S&W
    HKP-02318
    Now: $199.95
    Was: $299.95
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    Now: $199.95
    Was: $299.95
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  • H&K MP5 40/10 2 Position (0,1 Pictogram) FBI Style Trigger Housing - USED - HKP-02696 HK MP5 Trigger Housing - FBI 2 Position 0,1 Pictogram - .40 S&W, 10mm
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    HK MP5 Trigger Housing - FBI 2 Position 0,1 Pictogram - .40 S&W, 10mm

    H&K Heckler & Koch

    $279.95
    H&K MP5 40/10 2 Position (0,1 Pictogram) FBI Style Trigger Housing - C/P This 2 position trigger housing (0,1) features FBI pictogram markings and is designed for the HK MP5 40/10 series. It comes clipped and pinned for semi-auto units, ensuring it...
    HKP-02696
    $279.95
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    $279.95
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  • Out Of Stock
    New - HKP MP5K/SP89 9mm Trigger Group 2 Position Housing 0,1- Safe, Semi Only - HKP-17241 HK MP5K, SP89 Trigger Group - 9mm - 2 Position - Housing 0,1

    HK MP5K, SP89 Trigger Group - 9mm - 2 Position - Housing 0,1

    HKP HK Parts

    $0.00
    HKP/H&K MP5K/SP89 9mm Safe & Semi Only Trigger Group - Clipped & Pinned Introducing a cost-effective alternative to the rare and expensive all-German HK FBI or 0,1 ambidextrous trigger group, now available in a 2-position Navy factory German...
    HKP-17241
    $0.00
    Out Of Stock
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    $0.00
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