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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  • On Sale
    New - RCM HK VP9 Match 9mm Barrel - Threaded 13.5x1 LH - HKP-21068 HK VP9 Match Barrel - 9mm - 6.1" - Threaded 13.5x1 LH
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    HK VP9 Match Barrel - 9mm - 6.1" - Threaded 13.5x1 LH

    RCM

    Now: $236.25
    Was: $262.50
    RCM HK VP9 Match 9mm Barrel - Threaded 13.5x1 LH RCM threaded match barrel for the HK VP9 Match. Machined from fully heat-treated 4140 ordnance-grade steel and finished inside and out with a nitrided...
    HKP-21068
    Now: $236.25
    Was: $262.50
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    Was: $262.50
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  • On Sale
    New - HK/HKP – 20 Round HK P2000 Magazine – Black - HKP-20789 HK P2000 Magazine - 20 Round
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    HK P2000 Magazine - 20 Round

    HKP HK Parts / Heckler & Koch

    Now: $89.96
    Was: $99.95
    HK Parts and Heckler and Koch 20 Round Magazine for HK P2000 and HK USP9 Compact Specifications: HK P2000 +7 magazine extension coupled with a new full-size HK P2000, 13 round magazine fully asse
    HKP-20789
    Now: $89.96
    Was: $99.95
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    Was: $99.95
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  • New - H&K HK MR556/HK 416 9" M-LOK Handguard - Black - HKP-19670 HK416, MR556 Handguard - 9" - M-LOK
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    HK416, MR556 Handguard - 9" - M-LOK

    H&K Heckler & Koch

    $257.95
    H&K HK MR556/HK 416 9" M-LOK Handguard - Black New HK German manufactured forearm for the HK 416 and MR556 firearm. Comes exactly as pictured.  Compatible With: HK MR556
    HKP-19670
    $257.95
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  • HK G36, G36C, G36K Magwell HK G36, G36C, G36K Magwell
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    HK G36, G36C, G36K Magwell

    HKP HK Parts

    $49.95
    Magazine Well - Magwell FDE & RAL8K - HK G36 Allows use of all factory G36 and Magpul G36 magazines. This magwell fits all 30, 10, and 100 round magazines and drums. Compatible With: G36
    HKP-19300-M
    $49.95
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  • Out Of Stock
    New - H&K HK XM8 Sling - Black - HKP-17669 HK XM8 Sling - Black
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    HK XM8 Sling - Black

    H&K Heckler & Koch

    $99.95
    H&K HK XM8 Sling - Black New HK German XM8 Tactical Sling. The real deal and a rare HK collectible. Only a few available.
    HKP-17669
    $99.95
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  • New - H&K HK VP9SK Standard Barrel - Black - HKP-18320 HK VP9SK Barrel - 9mm - 3.39"
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    HK VP9SK Barrel - 9mm - 3.39"

    H&K Heckler & Koch

    $270.95
    H&K HK VP9SK Standard Barrel - Black Brand new HK German Standard Length VP9SK Barrel. Marked HK 9mmx19 Brand new cold hammer forged & made in Germany.
    HKP-18320
    $270.95
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  • On Sale
    New - HK MP5/94 3 Position Semi-Only Trigger Group 5 US Made Compliant Parts w/ Flat Trigger - HKP-19939 HK MP5, HK94 Trigger Group - Flat Trigger - 3 Position - Semi-Only - 5 US Made Compliant Parts
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    HK MP5, HK94 Trigger Group - Flat Trigger - 3 Position - Semi-Only - 5 US Made Compliant Parts

    Now: $584.96
    Was: $649.95
    Trigger Group - Semi-Only - 3 Position - 5 US Made Compliant Parts with Flat Trigger - MP5/94 Ambidextrous Trigger Group - Semi Auto - 5 U.S Parts Includes:
    HKP-19939
    Now: $584.96
    Was: $649.95
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  • Out Of Stock
    New - H&K MP5, 93/53/33, 91 (9mm, .40/10, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Housing - Clipped & Pinned - HKP-19801 HK MP5, HK33, HK53, HK93, HK91 Housing - 3 Position 0,1,3 Pictogram - Clipped and Pinned
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    HK MP5, HK33, HK53, HK93, HK91 Housing - 3 Position 0,1,3 Pictogram - Clipped and Pinned

    H&K Heckler & Koch

    $249.95
    H&K MP5, 93/53/33, 91 (9mm, .40/10, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Housing - Clipped & Pinned Introducing the universal 3 position burst pictogram housing for HK MP5,...
    HKP-19801
    $249.95
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    $249.95
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  • On Sale
    New - Magpul MOE Stock MIL Spec - Black - HKP-19393
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    HK416, MR556, AR-15 Stock - MOE - MIL Spec

    Magpul

    Now: $40.46
    Was: $44.95
    Magpul MOE Stock MIL SPEC Magpul Industries MOE Carbine Black Stock Complete - MIL Spec Compatible With: MR556 & HK 416 equipped with mil-spec buffer tubes AR-15 platfo
    HKP-19393
    Now: $40.46
    Was: $44.95
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    Was: $44.95
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  • On Sale
    New - Smith Enterprises HK Mark 23 .45 ACP Vortex Pistol Flash Hider - 16x1 RH - HKP-15806 HK Mark 23 Flash Hider - Vortex - 16x1 RH
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    HK Mark 23 Flash Hider - Vortex - 16x1 RH

    Smith Enterprises

    Now: $69.96
    Was: $79.95
    Smith Enterprises HK Mark 23 .45 ACP Vortex Pistol Flash Hider - 16x1 RH The Vortex Flash Hider is built to the highest standards, featuring proven flash-hiding capabilities for the Mark 23 and other...
    HKP-15806
    Now: $69.96
    Was: $79.95
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    Was: $79.95
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