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 Brass Catcher - Black - HKP-19179 HK417, MR762 Brass Catcher
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    HK417, MR762 Brass Catcher

    H&K Heckler & Koch

    $624.95
    Heckler and Koch MR762, HK417 Brass Catcher - Black Factory HK brass catcher designed to capture and contain spent casings during live fire on MR762, HK417, and G28 platforms. Mounts directly to a Picatinny rail section on the handguard for a stable,...
    HKP-19179
    $624.95
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    $624.95
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  • Out Of Stock
    New - H&K HK SL8-1 Clamping Sleve - HKP-16401

    HK SL8-1 Safety Clamping Sleeve

    H&K Heckler & Koch

    $8.95
    H&K HK SL8-1 Clamping Sleve
    HKP-16401
    $8.95
    Out Of Stock
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    $8.95
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  • Used - H&K HK SL8-1 Rear Sight - HKP-16374 HK SL8-1 Rear Sight
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    HK SL8-1 Rear Sight

    H&K Heckler & Koch

    $39.95
    H&K HK SL8-1 Rear Sight
    HKP-16374
    $39.95
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    $39.95
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  • Out Of Stock
    New - H&K HK G36 to AR-15 Mag Conversion Magwell - RAL 8K - HKP-17691 HK G36 Magazine Conversion to AR-15 Magwell - RAL8000

    HK G36 Magazine Conversion to AR-15 Magwell - RAL8000

    H&K Heckler & Koch

    $259.95
    HK G36 To AR15, M4 Magazine Conversion Magwell - RAL 8K Simply swap the magazine well from the G36 to this offering and you can then run AR15/M4 style magazine in your G36 or SL8/G36 conversion. Allows Use Of All AR15-M4 magazines in the G36 with this...
    HKP-17691
    $259.95
    Out Of Stock
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    $259.95
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  • Out Of Stock
    New - H&K HK G36 Incomplete Bolt Group Carrier - Black - HKP-16434 HK G36 Bolt Group Carrier - Incomplete

    HK G36 Bolt Group Carrier - Incomplete

    H&K Heckler & Koch

    $495.99
    HK G36 Bolthead Carrier Incomplete This is not compatible with a HK SL8.
    HKP-16434
    $495.99
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  • New - Comp-Tac HK VP9SK MTAC Holster - Black - HKP-18342-M HK VP9SK Holster - MTAC
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    HK VP9SK Holster - MTAC

    Comp-Tac

    $79.95
    Comp-Tac HK VP9SK MTAC Holster The MTAC is an inside the waistband (IWB) Kydex and leather hybrid holster designed for concealed carry. Created to be worn behind the hip at 4:00 or 5:00, this holster offers the best in comfort and speed for...
    HKP-18342-M
    $79.95
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    $79.95
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  • On Sale
    New - Single Sided Picatinny Rail - HK G36 - HKP - HKP-18429 HK G36, G36C, G36K Picatinny Rail - Single Sided
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    HK G36, G36C, G36K Picatinny Rail - Single Sided

    Other

    Now: $47.95
    Was: $69.95
    Single Sided Picatinny Rail - HK G36, G36C, G36K - HKP Single-sided lateral Picatinny rail designed for HK G36 sight rail configurations. Provides a mounting interface for compatible accessories on G36 pattern platforms...
    HKP-18429
    Now: $47.95
    Was: $69.95
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    Now: $47.95
    Was: $69.95
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  • New - Timney Triggers HK MP5 .40/10mm 2-Stage Trigger - HKP-20510 HK MP5 2-Stage Trigger - .40 S&W, 10mm
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    HK MP5 2-Stage Trigger - .40 S&W, 10mm

    Timney Triggers

    $358.95
    Timney Trigger for MP5 .40 S&W, 10mm The Timney HK MP5 .40 trigger is factory-set with a two pound first stage and a two pound second stage that elevates the platform so the shooter can achieve the utmost in accuracy. This offering comes complete...
    HKP-20510
    $358.95
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    $358.95
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  • On Sale
    New - Magpul HK MP5 & HK94 MOE SL-S Stock - FDE - HKP-20489 HK MP5, HK94, HK33, HK53, HK93 Stock, Complete - MOE SL-S - FDE
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    HK MP5, HK94, HK33, HK53, HK93 Stock, Complete - MOE SL-S - FDE

    Magpul

    Now: $134.95
    Was: $234.95
    Magpul MOE SL-S - FDE- Complete Drop In Stock for HK MP5, HK94, HK33, HK53, HK93 Magpul MOE SL-S MP5, HK94 complete stock ready to drop in. Great option for those looking for different length options. Sleek and perfectly designed. The sleek profile,...
    HKP-20489
    Now: $134.95
    Was: $234.95
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    Now: $134.95
    Was: $234.95
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  • New - SB Tactical HK MP5 SBA4 Pistol Stabilizing Brace - FDE - HKP-20352 HK MP5 Pistol Stabilizing Brace - SBA4 - FDE
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    HK MP5 Pistol Stabilizing Brace - SBA4 - FDE

    SB Tactical

    $294.95
    SB Tactical HK MP5 SBA4 Pistol Stabilizing Brace - FDE MP5, SBA4 5-position adjustable brace features an integral ambidextrous QD sling socket for a quick install and removal sling attachment. This brace is the perfect addition for your MP5, SP5 or clone...
    HKP-20352
    $294.95
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    $294.95
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  • New - H&K MP5K 40/10 SEF Navy Style Housing - Clipped & Pinned - HKP-20108 HK MP5K Trigger Housing - SEF Navy Style - Clipped and Pinned - .40 S&W, 10mm
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    HK MP5K Trigger Housing - SEF Navy Style - Clipped and Pinned - .40 S&W, 10mm

    H&K Heckler & Koch

    $179.95
    H&K MP5K 40,10 SEF Navy Style Housing - Clipped and Pinned New factory German housing that has the cutout for the bolt hold open found on the MP5 40,10 firearms. Specifications: Made In Germany Clipped and Pinned SEF Pictogram Markings Navy Style...
    HKP-20108
    $179.95
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    $179.95
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  • New - H&K MP5K 9mm Semi Auto SF style Trigger Group Complete - HKP-19936 HK MP5K Trigger Group, Complete - SF Semi Auto - 9mm
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    HK MP5K Trigger Group, Complete - SF Semi Auto - 9mm

    USA

    $449.95
    H&K Heckler and Koch MP5K 9mm Semi Auto SF style Trigger Group Complete Each unit is composed of German HK & the finest US made HK Parts. This lower is ready to drop on your semi auto HK firearm. Comes complete with the US made parts already...
    HKP-19936
    $449.95
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    $449.95
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