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 - JMAC Customs BDS-37 Blast Diversion Shield - Bravo with HD 3-Lug Adapter - HKP-20521 Blast Diversion Shield - BDS-37 - Bravo with HD 3-Lug Adapter
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    Blast Diversion Shield - BDS-37 - Bravo with HD 3-Lug Adapter

    JMAC Customs

    $229.95
    JMAC Customs BDS-37 Blast Diversion Shield - Bravo with HD 3-Lug Adapter The YHM-2050 HD (heavy duty) 3-Lug Adapter is a quick-attach mounting option designed to provide added strength and longevity to your 3-Lug equipped firearm. This fully...
    HKP-20521
    $229.95
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  • New - Lee Sporting LS5 HK MP5 Complete Trigger Group Flat Trigger - Push Pin - HKP-20482 HK MP5 Trigger Group - Flat Trigger - Push Pin
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    HK MP5 Trigger Group - Flat Trigger - Push Pin

    Lee Sporting / Magpul

    $549.95
    Lee Sporting Complete Trigger Group - MP5 Push Pin - Flat Trigger The LS5 trigger group from Lee Sporting is a definitive ergonomic upgrade over the OEM grip, boasting a weight reduction of 4.3oz compared to the original. This billet aluminum trigger...
    HKP-20482
    $549.95
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  • New - MP5 to MP5K Housing Conversion Service - HKP-20473 MP5 to MP5K Housing Conversion Service
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    MP5 to MP5K Housing Conversion Service

    USA

    $149.95
    MP5 to MP5K Housing Conversion Service At HK Parts we are now offering our own HK trigger housing conversion service. No one does a better job with quicker turn around then we do. This conversion is the best option for those that want to install hard to...
    HKP-20473
    $149.95
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  • Used - German 40mm Cleaning Kit - HKP-20405 HK Firearm Cleaning Kit - 40mm - German
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    HK Firearm Cleaning Kit - 40mm - German

    H&K Heckler & Koch

    $24.95
    German 40mm Cleaning Kit German military issue cleaning kit. These kits were used in several models Panzerfaust, from the WW2 era to modern. They were also issued for a variety of weapons ranging from 38-44mm. In good to excellent condition...
    HKP-20405
    $24.95
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  • New - Talon Grip HK45 Granulate - Black - HKP-20257 HK45 Grip Wrap - Granulate
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    HK45 Grip Wrap - Granulate

    Talon Grip

    $19.99
    TALON Grip - HK45  - 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 maintain control. Installation is quick and easy. The pistol grips...
    HKP-20257
    $19.99
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  • New - HK MP5K Side Reinforcement Tabs - HKP-20168 HK MP5K Side Reinforcement Tabs
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    HK MP5K Side Reinforcement Tabs

    USA

    $14.95
    HK MP5K Side Reinforcement Tabs
    HKP-20168
    $14.95
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  • Out Of Stock
    New - JMAC Customs SS-8 w/ 1913 Folding Mech - HKP-20146 Folding Stock - SS-8 with 1913 Folding Mech

    Folding Stock - SS-8 with 1913 Folding Mech

    JMAC Customs

    $284.99
    JMAC Customs SS-8 Folding Stock w/1913 Folding Mech Skeleton stock 8" with 1913 folding mech (not assembled) 2x integrated QD sling socket 8" length Drilled and tapped for optional cheek risers (will be available in the future) Compatible with SIG...
    HKP-20146
    $284.99
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  • New - Bore Boss Pull-Through Bore Cleaner - .40/.41 - HKP-19411 Bore Boss Pull-Through Bore Cleaner - .40 S&W / .41
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    Bore Boss Pull-Through Bore Cleaner - .40 S&W / .41

    Real Avid

    $10.95
    Real Avid Bore Boss Pull-Through Bore Cleaner - .40/.41 From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece cable...
    HKP-19411
    $10.95
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  • New - H&K VP9, VP40 Grip Panel Left Side - Medium - Gray - HKP-18122 HK VP9, VP40 Grip Panel Left Side - Medium - Gray
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    HK VP9, VP40 Grip Panel Left Side - Medium - Gray

    H&K Heckler & Koch

    $24.95
    H&K VP9, VP40 Grip Panel Left Side - Medium - Gray New HK German manufactured. Left side, medium size. Perfect for spare or for custom stippling projects. Drop-in part for your HK VP pistol. Compatible With: HK VP9 HK VP40 HK VP9A1 F HK VP9A1 K
    HKP-18122
    $24.95
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  • New - H&K HK Mark 23 Hammer Strut Spring - HKP-01581
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    HK Mark 23 Hammer Strut Spring

    H&K Heckler & Koch

    $8.95
    HK Mark 23 Hammer Strut Spring
    HKP-01581
    $8.95
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    $8.95
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  • New - H&K HK USP/45/45C Disconnector - HKP-01175
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    HK45, HK45 Compact, USP Disconnector

    H&K Heckler & Koch

    $9.95
    HK German USP 45, HK45, & HK45C Disconnector Compatible: HK45 USP9 USP40 USP45 USP Compact 9 USP Compact 40 USP Compact 45
    HKP-01175
    $9.95
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  • New - H&K HK USP/45/P2000 Sear Axle - HKP-01251
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    HK45, USP, P2000 Sear Axle

    H&K Heckler & Koch

    $13.95
    Sear Axle Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .357 SIG HK USP Compact .45 ACP HK USP Compact LEM HK45 HK45 Compact HK P2000 9mm HK P2000 .40 S&W HK P2000 .357...
    HKP-01251
    $13.95
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