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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  • HKP Bundesadler Patch HKP Bundesadler Patch
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    HKP Bundesadler Patch

    HKP HK Parts

    $6.99
    HKP Bundesadler Patch  Get your hands on some of our premium new patches! 100% high grade rubber PVC patch with velcro backing for its outer carrier. Features: Velcro Back Official HKP Merchandise
    HKP-21295-M
    $6.99
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    $6.99
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  • New - UTG PRO Picatinny Scope Rail For HK Claw Mount - HKP-02042 Picatinny Optic Rail - Claw Adapter
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    Picatinny Optic Rail - Claw Adapter

    UTG PRO

    $14.95
    HK Claw Mount To Picatinny Style Rail This part allows all STANAG style scopes to accept the universal Picatinny style rail. Each rail adapter comes with rail and mounting hardware. This part adds 6 1/8 inches of rail space to the top of your claw mount...
    HKP-02042
    $14.95
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  • New - HKP Picatinny Rail For HK Receivers - 15 Slot - HKP-18241 HK Picatinny Rail For HK Receivers - 15 Slot
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    HK Picatinny Rail For HK Receivers - 15 Slot

    HKP HK Parts

    $59.95
    HKP Picatinny Rail For HK Receivers - 15 Slot Mil-Spec all steel CNC'ed picatinny rail in the white, relief cut to fit flush and low profile on HK receivers. The most solid and consistent mounting platform made for mounting scopes and optics to HK builds...
    HKP-18241
    $59.95
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  • New - HK UMP/USC (.40 S&W/.45 ACP/9mm) Picatinny Rail Screw - HKP-16562 HK UMP, USC Picatinny Rail Screw
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    HK UMP, USC Picatinny Rail Screw

    $0.75
    HK UMP/USC (.40 S&W/.45 ACP/9mm) Picatinny Rail Screw Good spares to have on hand as screws can get damaged or lost.
    HKP-16562
    $0.75
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    $0.75
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  • New - HKP HK MP5K/SP5K/SP89 Picatinny Rail Brace/Stock Adapter - HKP-21385-M HK MP5K, SP5K Stock or Brace Adapter - Picatinny Rail
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    HK MP5K, SP5K Stock or Brace Adapter - Picatinny Rail

    HKP HK Parts

    $129.95
    HKP HK MP5K/SP5K/SP89 Picatinny Rail Brace/Stock Adapter Our rail stock adapter allows you to attach any 1913 Style Stock, Brace to your MP5K.The 1913 style stocks & braces lock in place and provide a better Cheek Weld than many traditional stock...
    HKP-21385-M
    $129.95
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  • New - H&K HK 30 Round MP5/SP5 & MP5K/SP5K 9mm Magazine - HKP-19979-M HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Cerakote
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    HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Cerakote

    H&K Heckler & Koch

    $85.95 - $89.95
    Heckler and Koch MP5, SP5, SP5K, MP5K 9mm 30 Round Curved Magazine Factory fresh Heckler and Koch 30 round, curved 9mm. When only the best will do. Each magazine starts life as a brand-new, factory-sealed magazine, which is then expertly Cerakoted in...
    HKP-19979-M
    $85.95 - $89.95
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  • New - Zenith 30 Round HK MP5 Magazine - HKP-20832-M HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Cerakote
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    HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Cerakote

    Zenith

    $48.95
    Zenith 30 Round HK MP5 Magazine Features: Cerakote finish - Many colors to choose from All steel construction Round count indicator holes on the rear of the magazine Stainless steel follower Reinforced feed lips High-tensile compression...
    HKP-20832-M
    $48.95
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    $48.95
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  • New - Hogue Grips Universal HK Handgun Grip - HKP-02519 HK Pistol Handgun Grip
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    HK Pistol Handgun Grip

    Hogue

    $11.95
    Hogue Grips Universal HK Handgun Grip The Hogue Grip hugs the contours of your gun. Molded from their modern" soft" but durable rubber" Handall grip sleeves are easily installed and provide years of dependable service. Soft textured rubber...
    HKP-02519
    $11.95
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  • New - H&K 91/G3 (7.62x51/.308) Firing Pin Spring - HKP-00498
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    HK91, G3 Firing Pin Spring

    H&K Heckler & Koch

    $9.95
    HK German HK G3, HK91, & PTR Firing Pin Spring This is a common repair and replacement item and is great for spares as this is a common breakage part.
    HKP-00498
    $9.95
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    $9.95
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  • New - H&K 10 Round HK MR556/416 Magazine - Black - HKP-02421 HK416, MR556 Magazine - 10 Round
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    HK416, MR556 Magazine - 10 Round

    H&K Heckler & Koch

    $74.95
    Heckler and Koch HK416 and HK MR556 Factory - 10 Round Steel Maritime Coated Magazine  Compatible with AR-15 & M16 firearms. All steel & stainless construction, maritime coated & made to last a lifetime. Compatible With:  HK...
    HKP-02421
    $74.95
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  • New - 3 Point Factory Sling HK German - Green - HKP-00182 3 Point Factory Sling HK German - Green HKP-00182
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    HK German Sling - 3 Point - Factory Original - Green

    Other

    $99.95
    3 Point Factory Sling HK German - Green New HK German manufactured. This sling can be used as a 2-point or 3-point sling on your HK firearm. This sling is the factory HK-issued sling that came on the 90 series of firearms. Compatible...
    HKP-00182
    $99.95
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    $99.95
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  • New - HKP MP5, MP5K Front Sight Tower Assembly - HKP-17792 HK MP5, MP5K Front Sight Tower Assembly
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    HK MP5, MP5K Front Sight Tower Assembly

    HKP HK Parts

    $54.95
    HKP MP5, MP5K Front Sight Tower Assembly New US made from a solid billet of ordnance grade steel. Each front sight tower, triple frame set comes complete with a new HK diopter style replaceable front sight post & roll pin. This is the complete set...
    HKP-17792
    $54.95
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