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 - HK 416/417 Buffer Retainer - HKP-20040
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    HK 416, MR566, HK417 MR762 Buffer Retainer

    HK HAUS

    $9.95
    HK 416/417 Buffer Retainer New HK USA manufacture for the HK 416 / 417  family of firearms. Made from stainless steel.
    HKP-20040
    $9.95
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  • New - Meprolight HK P2000/P2000SK Tru-Dot Night Sight Set - Green - HKP-01904
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    Meprolight HK P2000/P2000SK Tru-Dot Night Sight Set - Green

    Meprolight

    $99.95
    Meprolight HK P2000/P2000SK Tru-Dot Night Sight Set - Green Features: Unequaled Light Performance Brightest Night Sights Available Today Used by Military & Law Enforcement All Tru-Dot sights are covered by a 12-year usable illumination warranty to...
    HKP-01904
    $99.95
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  • Out Of Stock
    New - H&K 28 Round HK USPC/P2000 9mm Magazine - Black - HKP-17203 HK USPC, P2000 Magazine - 9mm - 28 Round

    HK USPC, P2000 Magazine - 9mm - 28 Round

    HKP HK Parts

    $74.95
    H&K 28 Round HK USPC/P2000 9mm Magazine  New HK German USPC, P2000 Magazine body combined and pre-installed along with the HK Parts 28 round mag extension kit fully installed. Each offering is a complete, fully assembled, ready for the range 28...
    HKP-17203
    $74.95
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  • New - H&K HK MR556/MR762/416/417 33mm Front Folding Sight - HKP-02548 HK416, MR556, HK417, MR762 Front Folding Sight - 33mm
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    HK416, MR556, HK417, MR762 Front Folding Sight - 33mm

    H&K Heckler & Koch

    $149.95
    Heckler and Koch's 33mm Front Folding Sight for HK416, MR556, HK417, MR762 HK416 Or HK MR556 Front Folding Sight. This item attaches directly to the front gas block of the HK 416, HK MR556 or HK MR762, HK417. Designed to be used in conjunction with -...
    HKP-02548
    $149.95
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  • New - HKP +7 HK 45C, USPC .45 ACP Magazine Extension - HKP-21807-M HKP +7 HK 45C, USPC .45 ACP Magazine Extension
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    HKP +7 HK 45C, USPC .45 ACP Magazine Extension

    HKP HK Parts

    $59.95
    HKP +7 HK 45C, USPC .45 ACP Magazine Extension HK Parts magazine extension +7 adds 7 additional rounds to the HK45C, 8 round magazine. Each unit can then be fully assembled into a 15 round HK45C magazine. Ideal for competitive shooters, concealed carry,...
    HKP-21807-M
    $59.95
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  • On Sale
    New - MKE AP5-M Sling Complete - HKP-21186 Century Arms AP5-M, AP5-P Sling - Complete
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    Century Arms AP5-M, AP5-P Sling - Complete

    MKE

    Now: $24.95
    Was: $34.99
    MKE AP5-P Sling Complete Factory-original sling designed for Century Arms AP5-M and AP5-P pistols. Will work with HK SP5 or SP5k and any other in-spec pistol with sling hook attachment points. Features: Factory MP5K style Sling Fits AP5-M and AP5-P...
    HKP-21186
    Now: $24.95
    Was: $34.99
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  • New - Franklin Armory HK MP5K - BFSIII HK-C1 Binary SEF Navy Style Trigger Group - HKP-20928-M
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    HK MP5K, SP5K Binary Trigger Group - SEF Navy - BFSIII - 9mm

    FA Franklin Armory

    $879.95
    Franklin Armory HK MP5K - BFSIII HK-C1 Binary SEF Navy Style Trigger Group In position 3 it will fire 1 round on pull and 1 round on release. With a 4.5 lb trigger pull, making this the fastest semi-automatic trigger on the market. The BFSIII™ is...
    HKP-20928-M
    $879.95
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    $879.95
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  • New - HKP HK91, G3, PTR91 2 Point Leather Sling - Dark Brown - HKP-20271 HK91, G3, PTR91 2 Point Leather Sling - Dark Brown
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    HK91, G3, PTR91 2 Point Leather Sling - Dark Brown

    HKP HK Parts

    $49.95
    2 Point Leather Sling - Dark Brown These new HK Parts 2-point slings are based off of the original German HK design that are no longer offered. This is a 1st time offering, handcrafted by a German artisan and made in the USA. Made from quality USA...
    HKP-20271
    $49.95
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  • New - H&K MP5SD 9mm Barrel Port Brush - HKP-00137 HK MP5SD Barrel Port Cleaning Brush - 9mm
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    HK MP5SD Barrel Port Cleaning Brush - 9mm

    H&K Heckler & Koch

    $164.95
    HK Factory MP5SD Barrel Port Brush A much-needed barrel brush to keep the barrel clean on all factory HK MP5SD'S. Fits HK factory SD barrels or in-spec clone barrels such as RCM US-made barrels. Compatible With: MP5SD models Grab a...
    HKP-00137
    $164.95
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  • New - H&K 90 Series Trigger - HKP-18706
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    HK90 Series Trigger

    H&K Heckler & Koch

    $19.95
    H&K 90 Series Trigger New German 90 series Compatible With: HK91, G3, PTR HK93, 33, 53 HK MP5, 94, Zenith, POF, MKE Clone or other custom builds
    HKP-18706
    $19.95
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  • New - HKP 90 Series Hammer For Trigger Pack - HKP-00377 HKP 90 Series Hammer For Trigger Pack
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    HKP 90 Series Hammer For Trigger Pack

    HKP HK Parts

    $96.95
    HKP 90 Series Hammer For Trigger Pack This US-made hammer is all steel billet, machined, and counts as one US 922r compliant part for your HK clone build. This US-made hammer can be used on all HK SEF, Navy, or 0, 1 style trigger packs in 9mm, 40/10, ...
    HKP-00377
    $96.95
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  • New - H&K/HKP HK MP5 .22 A2 Stock - HKP-21937-M HK/HKP HK MP5 .22 A2 Stock
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    HK/HKP HK MP5 .22 A2 Stock

    HKP HK Parts / Heckler & Koch

    $179.95
    H&K/HKP HK MP5 .22 A2 Stock Upgrade your HK MP5 .22 rifle with the precision-engineered A2 fixed stock from H&K & HK Parts. Designed specifically for the .22 LR, this stock provides a solid, stable shooting engagement while maintaining the...
    HKP-21937-M
    $179.95
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