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 417 M110A1 G28 SDMR Stock - RAL 8K - HKP-21675 HK417, MR762 Buttstock - M110A1, G28 SDMR Clone - RAL8000
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    HK417, MR762 Buttstock - M110A1, G28 SDMR Clone - RAL8000

    H&K Heckler & Koch

    $489.95
    HK Heckler and Koch M110A1 G28 SDMR Stock in RAL 8K for HK417 This exceptional stock is the definitive choice for your M110A1, G28 SDMR clone, or any custom build! With its HK E1 Mil-Spec style...
    HKP-21675
    $489.95
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  • New - XS Sight Systems HK VP9OR R3D 2.0 Rear Sight - HKP-21618 HK VP9 R3D 2.0 Rear Sight
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    HK VP9 R3D 2.0 Rear Sight

    XS Sights

    $59.95
    XS Sight Systems HK VP9OR R3D 2.0 Rear Sight Their second-generation R3D night sights are engineered to give you a brighter stronger set of sights. Easily install their sights with a set that...
    HKP-21618
    $59.95
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  • New - Nefarious Arms HK 416/MR556 14.5" A3 Barrel - HKP-21589 HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28- A3 - Light
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    HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28- A3 - Light

    Nefarious Arms

    $594.95
    Nefarious Arms HK 416/MR556 14.5" A3 Barrel Each Nefarious Arms barrel is cold-hammer-forged and chrome-lined for years of accurate shooting.  Grab this expertly crafted barrel for your next SBR or...
    HKP-21589
    $594.95
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  • Out Of Stock
    New - H&K G36 IDZ Stock - Concave - HKP-21501 HK G36 IDZ Concave Stock
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    HK G36 IDZ Concave Stock

    H&K Heckler & Koch

    $386.95
    H&K G36 IDZ Stock Concave When it comes to adjustable, folding G36 stocks, the IDZ tops the list. German made by HK with a concave buttpad for reliability and comfort.   Features: 3 position f
    HKP-21501
    $386.95
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    New - HKP HK 416C 9" Complete Upper Receiver Assembly - HKP-21042 HK416C Upper Receiver Kit - 9"
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    HK416C Upper Receiver Kit - 9"

    HKP HK Parts

    $2,799.95
    HK416C Complete Upper Kit - 9"  Our complete 416C upper kit includes everything you need to pair with a mil-spec lower or an STS 416C lower. For that genuine look, the STS
    HKP-21042
    $2,799.95
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    On Sale
    New - B&T TP9/MP9 Camo Holster - Swiss Military - HKP-20980 B&T TP9, MP9 Holster - Camo - Swiss Military
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    B&T TP9, MP9 Holster - Camo - Swiss Military

    B&T Brugger & Thomet

    Now: $74.95
    Was: $125.00
    B&T TP9/MP9 Camo Holster - Swiss Military The B&T TP9 tactical leg holster is perfect for your TP9 or MP9 Pistol. This drop leg holster is fully adjustable both up and down and tightness around the...
    HKP-20980
    Now: $74.95
    Was: $125.00
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  • On Sale
    New - Victory Operational Works HK VP9 Crusader Max Holster - Standard - Right Hand - HKP-20308 HK VP9 Holster - Crusader Max - Right Hand
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    HK VP9 Holster - Crusader Max - Right Hand

    Victory Operational Works

    Now: $44.96
    Was: $99.95
    Victory Operational Works HK VP9 Crusader Max Holster - Standard - Right Hand The Crusa
    HKP-20308
    Now: $44.96
    Was: $99.95
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  • New - B&T TP9/MP9 Firing Pin - Black - HKP-17297
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    B&T TP9, MP9 Firing Pin

    B&T Brugger & Thomet

    $44.95
    B&T Firing Pin For B&T TP9, MP9 Genuine Swiss Brugger and Thomet firing pin for the TP9 and MP9 platforms. Compatible With: B&T TP9
    HKP-17297
    $44.95
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  • New - Timney Triggers HK91/G3 .308 2-Stage Trigger - Complete - HKP-20513-CP HK91, G3 2-Stage Trigger Group - Complete
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    HK91, G3 2-Stage Trigger Group - Complete

    Timney Triggers

    $478.95
    Timney Trigger for .308 - HK91 SEF Timney trigger group comes completely assembled and ready to drop in your receiver. Set up with a German ejector lever, new SEF selector lever, and a brand new...
    HKP-20513-CP
    $478.95
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  • New - Surefire (7.62x.308) SOCOM 3-Prong Flash Hider - Threaded 5/8x24 - HKP-19992 SOCOM Flash Hider - 7.62x51 / .308 - 3 Prong - Threaded 5/8x24
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    SOCOM Flash Hider - 7.62x51 / .308 - 3 Prong - Threaded 5/8x24

    Surefire

    $159.95
    Surefire (7.62x.308) SOCOM 3-Prong Flash Hider - Threaded 5/8x24 The SureFire three-prong flash hider is designed for Armalite AR-10, DPMS LR308, and other 7.62 rifles with 5/8x24 muzzle threads...
    HKP-19992
    $159.95
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  • New - Outers Barrel .308/7.62 Bore Cleaner - HKP-19921 HK Barrel Bore Cleaner - 7.62 / .308
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    HK Barrel Bore Cleaner - 7.62 / .308

    Other

    $7.95
    Outers Barrel .308/7.62 Bore Cleaner From the makers of the BoreSnake. Features: Fast, quality bore cleaning system
    HKP-19921
    $7.95
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  • New - H&K HK MR556/HK416 12.5" M-LOK Compatible Handguard - HKP-19695 HK416, MR556 M-LOK Compatible Handguard - 12.5"
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    HK416, MR556 M-LOK Compatible Handguard - 12.5"

    H&K Heckler & Koch

    $224.95
    H&K HK MR556/HK416 12.5" M-LOK Compatible Handguard Manufactured by HK from aircraft grade aluminum with a black hard coat anodized finish, this M-LOK handguard is designed for the Heckler & Koch...
    HKP-19695
    $224.95
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    $224.95
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