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 12 Round HK VP9SK/P30SK 9mm Magazine w/ Finger Rest - HKP-21078-M HK VP9SK, P30SK Magazine with Finger Rest - 12 Round - 9mm
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    HK VP9SK, P30SK Magazine with Finger Rest - 12 Round - 9mm

    HKP HK Parts / Heckler & Koch

    $69.95
    HK VP9SK & P30SK 9mm - 12 Round Magazine With Finger Rest This magazine has the same footprint, size, and overall length as the factory 10-round mag with pinky rest. Only, this offering gives you an extra two rounds with the pinky rest extension. A...
    HKP-21078-M
    $69.95
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  • On Sale
    New - HKP 9mm US Made Trigger Pack - 4 U.S. 922 Parts - HKP-17878 HK MP5 Trigger Pack - Semi-Auto - 9mm - 922r
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    HK MP5 Trigger Pack - Semi-Auto - 9mm - 922r

    HKP HK Parts

    Now: $215.95
    Was: $269.95
    Trigger Pack For MP5, HK94 Variants Such as Zenith, POF- 4 US 922r Compliant Parts HK MP5, HK94 9mm Semi Auto Trigger Pack complete. Each Trigger group incorporates the following US made compliant parts completely assembled & ready to drop in. The...
    HKP-17878
    Now: $215.95
    Was: $269.95
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    Now: $215.95
    Was: $269.95
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  • New - H&K MP5 & MP5K Railed Scope Mount - MLI - RAL 8000 - HKP-17661 HK MP5, MP5K Optic Mount - 5 5/8" - MLI - Picatinny Rail - RAL8000
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    HK MP5, MP5K Optic Mount - 5 5/8" - MLI - Picatinny Rail - RAL8000

    H&K Heckler & Koch

    $399.99
    HK German Low Profile Mount For HK MP5, MP5K- MLI - RAL 8000 HK MP5, MP5K low profile picatinny scope mount. Manufactured in house at HK Germany as part of the "Mid-Life Improvement" upgrade for the MP5 family of firearms. The first Picatinny style low...
    HKP-17661
    $399.99
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  • On Sale
    New - IMI 32 Round UZI Magazine - LIKE NEW - HKP-21231 IMI 32 Round UZI Magazine - LIKE NEW
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    IMI 32 Round UZI Magazine - LIKE NEW

    IMI

    Now: $32.95
    Was: $44.95
    Uzi 32 Round 9mm Magazine - Like New - IMI Licensed - Mec-Gar Manufacture Made in Italy by the renowed Mec-Gar magazine manufacturing company with IMI Licensing. An all steel production and a blued finish to help protect it against rust. These are the...
    HKP-21231
    Now: $32.95
    Was: $44.95
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    Was: $44.95
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  • New - H&K 10 Round HK VP9/VP40/USP Series/P Series Magazine Spring - HKP-01428
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    HK VP9, VP40, USP Series, P Series Magazine Spring - 10 Round

    H&K Heckler & Koch

    $6.95
    New German HK Magazine Spring For 10 Round Magazines A must-have part as magazine springs are high wear and a common replacement item. Compatible With: HK USP 9mm HK USP 40 S&W HK USP Compact 9mm HK USP Compact 40 S&W HK USP Compact 357 SIG HK...
    HKP-01428
    $6.95
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  • Out Of Stock
    New - MM HK 33/91/93/G3 5.56/.223 & 7.62x51/.308 Clubfoot With Heavy Rubber Buttpad - HKP-01144 HK33, HK93, HK91, G3 Clubfoot Stock With Heavy Rubber Buttpad

    HK33, HK93, HK91, G3 Clubfoot Stock With Heavy Rubber Buttpad

    Michaels Machines

    $229.95
    US-Made Clubfoot (21E/23E Style) Central Buttstock Section With US Heavy Rubber Buttpad Fits all HK 91/G3/21/23 and HK93/33/53 backplates and buffers. Just add your buffer and backplate and you are good to go. Great replacement or upgrade for your HK...
    HKP-01144
    $229.95
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  • On Sale
    New - RCM SP5K Spec - Full Auto Bolt Carrier - HKP-17932 HK SP5K Bolt Carrier - Full Auto
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    HK SP5K Bolt Carrier - Full Auto

    RCM

    Now: $170.95
    Was: $189.95
    HK SP5K Specification Full Auto Bolt Carrier - US Made Machined completely from billet ordnance grade steel. The HK SP5K carrier is made to the most updated and latest MP5K F specs that will fit the SP5K. Tungsten filled, heat treated, & factory...
    HKP-17932
    Now: $170.95
    Was: $189.95
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    Now: $170.95
    Was: $189.95
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  • New - HKP 90 Series Sear - HKP-00378 HK90, MP5K Sear Catch - Steel - US
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    HK90, MP5K Sear Catch - Steel - US

    HKP HK Parts

    $47.95
    HKP HK Parts HK90, HK MP5K Sear Catch - Steel - USA Made - Billeted Machined - Steel Hard to find and important for keeping your HK build 922r compliant. This US-made sear counts as one US-compliant part for your rifle or build. Machined from a bar of...
    HKP-00378
    $47.95
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  • Out Of Stock
    On Sale
    HK MP5, AP5 OEM Picatinny Rail MKE HKP-22335 HK MP5, AP5 OEM Picatinny Rail MKE HKP-22335

    HK MP5, AP5 Optic Mount - Picatinny

    MKE

    Now: $39.95
    Was: $49.95
    MKE HK MP5, AP5 OEM Picatinny Optic Rail MKE Picatinny optic rail for the MP5 platform. OEM part for the Century AP5.  Compatible With: HK MP5/SP5 Century Arms AP5 In-spec. clones and custom builds
    HKP-22335
    Now: $39.95
    Was: $49.95
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  • Out Of Stock
    New - B&T HK UMP & B&T APC Folding Stock - HKP-17441-M HK UMP, B&T APC Folding Stock

    HK UMP, B&T APC Folding Stock

    B&T Brugger & Thomet

    $140.00
    B&T Brugger and Thomet Folding Stock for HK UMP and B&T APC   Swiss manufactured B&T APC & UMP Folding stock. (NFA rules apply) Compatible With: UMP .45, .40, & 9mm USC (with UMP conversion) Omega GS offerings in 45, 40, &...
    HKP-17441-M
    $140.00
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  • On Sale
    New - PTR MP5 Tri-Rail Forearm - HKP-17782
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    HK MP5 Tri-Rail Handguard

    PTR

    Now: $126.95
    Was: $149.95
    PTR MP5 Tri-Rail Forearm US made and comes with 3 independent 4" removable rails that are fully modular and able to add and remove at will. Made in the USA. Low profile and the most modular of any picatinny style forearm available. The Picatinny Rails...
    HKP-17782
    Now: $126.95
    Was: $149.95
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    Now: $126.95
    Was: $149.95
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