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 - Holosun 510 Series Open Reflex Sight - Picatinny Mount - HKP-21656-M Holosun 510 Series Open Reflex Sight - Picatinny Mount
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    Holosun 510 Series Open Reflex Sight - Picatinny Mount

    Holosun

    $354.95
    Holosun 510 Series Open Reflex Sight - Universal Picatinny Mount The HS510C is a versatile open reflex optic designed for long gun applications. HS510C is at home on carbines, PCCs, and shotguns due...
    HKP-21656-M
    $354.95
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  • On Sale
    New - B&T Unigrip QD with Bipod - Aluminum - HKP-21596-M B&T Unigrip QD with Bipod - Aluminum
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    B&T Unigrip QD with Bipod - Aluminum

    B&T Brugger & Thomet

    $202.50 - $224.99
    B&T Unigrip QD with Bipod - Aluminum This B&T foregrip features a retractable bipod for superior weapon stability
    HKP-21596-M
    $202.50 - $224.99
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  • Out Of Stock
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    New - HKP HK21 Drum Hanger - HKP-21453 HK21 Drum Hanger
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    HK21 Drum Hanger

    HKP HK Parts

    Now: $164.95
    Was: $195.95
    HKP HK21 Drum Hanger Our HK21 drum hanger is precisley machined from 4140 billet steel, heat-treated to 50 Rockwell, and parkerized for a durable finish. A lower cost alternative to the discontinued...
    HKP-21453
    Now: $164.95
    Was: $195.95
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  • On Sale
    New - HKP HK P30 Railok™ Threaded Barrel Compensator - HKP-21225 HK P30 Railok™ Threaded Barrel Compensator
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    HK P30 Railok™ Threaded Barrel Compensator

    HKP HK Parts

    Now: $97.46
    Was: $189.95
    HK Parts Railok™ Mounting System Compensator for Threaded Barrel: H&K P30 The HK Parts Railok™ mounting system compensator strikes a seamless balance of form and function.  Users will immediately...
    HKP-21225
    Now: $97.46
    Was: $189.95
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  • On Sale
    Used - B&T Folding Stock/Length Adjustable Helmet Stock Section - Used - HKP-19784 B&T Folding Stock/Length Adjustable Helmet Stock Section - Used
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    B&T Folding Stock/Length Adjustable Helmet Stock Section - Used

    B&T Brugger & Thomet

    Now: $44.96
    Was: $49.95
    B&T HK MP5K, SP5K, SP89 Folding/Adjustable Helmet Stock Section Used stocks taken from demilled Swiss Police MP5's. A great stock and value at a great price. Swiss made B&T folding and length...
    HKP-19784
    Now: $44.96
    Was: $49.95
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  • Out Of Stock
    New - H&K 45mm Picatinny Rail Cover - Black - Universal - HKP-18857 Picatinny Rail Cover - 45mm
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    Picatinny Rail Cover - 45mm

    H&K Heckler & Koch

    $14.95
    H&K 45mm Picatinny Rail Cover - Universal New factory HK rubberized picatinny rail cover. Specifications: Rail cover dimensions: 45x26x7 mm
    HKP-18857
    $14.95
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    $14.95
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  • On Sale
    New - Talon Grip HK USP Full Size 9mm & .40 S&W - Granulate Black - HKP-20282 HK USP Grip Wrap - Granulate - 9mm / .40 S&W
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    HK USP Grip Wrap - Granulate - 9mm / .40 S&W

    Talon Grip

    Now: $18.00
    Was: $19.99
    TALON Grip - USP Full Size 9mm/.40 - Granulate Black TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you...
    HKP-20282
    Now: $18.00
    Was: $19.99
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  • On Sale
    New - SB Tactical HK91 SBA4 Pistol Stabilizing Brace & Adapter - HKP-19931 HK91 SBA4 Pistol Stabilizing Brace and Adapter
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    HK91 SBA4 Pistol Stabilizing Brace and Adapter

    SB Tactical

    Now: $287.96
    Was: $319.95
    SB Tactical HK91 SBA4 Pistol Stabilizing Brace & Adapter Includes: G3, HK91 backplate & recoil assembly AR, M4 stock adapter
    HKP-19931
    Now: $287.96
    Was: $319.95
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  • Used - B&T HK MP5 Handguard With LED Weapon Light - Used - HKP-19605
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    HK MP5 Handguard With LED Weapon Light - Used

    B&T Brugger & Thomet

    $399.95
    B&T HK MP5 Handguard With LED Weapon Light - Used B&T model TL99CREE LED lit handguard for HK MP5, 94 models. Each unit handguard is built with the integrated tactical LED light & 3 position switch.
    HKP-19605
    $399.95
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  • On Sale
    Used - Comp-Tac HK P2000SK Infidel Ultra Max Holster - Black - HKP-19586-M HK P2000SK Holster - Infidel Ultra Max
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    HK P2000SK Holster - Infidel Ultra Max

    Comp-Tac

    $57.34 - $89.95
    Comp-Tac HK P2000SK Infidel Ultra Max Holster The Infidel Ultra Max Holster is an Inside the Waistband Kydex and leather hybrid holster designed for concealed carry. The Infidel Ultra Max is designed...
    HKP-19586-M
    $57.34 - $89.95
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  • New - H&K HK MR762/417/G28 Handguard Rail System Screw - Black - HKP-16601 HK416, MR556, HK417, MR762 Handguard Locking Screw
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    HK416, MR556, HK417, MR762 Handguard Locking Screw

    H&K Heckler & Koch

    $16.95
    HK416, MR556, HK417, MR762 - Handguard Locking Screw Replacement handguard locking screw that secures the handguard to the upper receiver.  Compatible With: HK HK416
    HKP-16601
    $16.95
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  • New - H&K HK P30/P2000 Trigger Bar - HKP-01795
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    HK P30, P2000 Trigger Bar

    H&K Heckler & Koch

    $35.95
    H&K P30 & P2000 Trigger Bar Compatible With These Models In 9mm, .40 S&W, & .357 SIG: HK P30 HK P30L
    HKP-01795
    $35.95
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    $35.95
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