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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  • Used - HK 33 Wide Forend Black - Surplus - HKP-20132 HK33 Wide Handguard Black - Surplus
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    HK33 Wide Handguard Black - Surplus

    H&K Heckler & Koch

    $99.95
    HK 33 Wide Handguard Black - Surplus Surplus condition, with minor scratches and wear on the polymer exterior in very good shape overall. 11.5 inches long. The aluminum heat shielding is still intact, riveted to the inside of the handguard. Compatible...
    HKP-20132
    $99.95
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  • On Sale
    New - HKP HK VP9 Gen1 V1 Rail Mount Compensator - HKP-19566 HK VP9 Gen1 V1 Rail Mount Compensator
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    HK VP9 Gen1 V1 Rail Mount Compensator

    HKP HK Parts

    Now: $134.95
    Was: $189.95
    HKP HK VP9 Gen1 V1 Rail Mount Compensator *DO NOT USE COMPENSATOR WITH A THREAD PROTECTOR INSTALLED ON THE BARREL.  Doing so will result in damage to your firearm and compensator.* Specifications: Length - 4 1/4 inches Height - 2 1/2 inches Weight...
    HKP-19566
    Now: $134.95
    Was: $189.95
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    Now: $134.95
    Was: $189.95
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  • New - HKP 17 Round HK VP9/P30 Extended Magazine Spring For +5 Extensions - HKP-19297
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    HK VP9, P30 Magazine Spring - 17 Round

    HKP HK Parts

    $8.95
    Extended Magazine Spring - HK 17 Round Magazine For Use With The +4 or+5 Extension - HK VP9, HK P30 This Extended Magazine spring fits VP9 and P30 9mm 17 round magazines with the HK Parts +4 and +5 Extension Base Plates.  A must-have item when using...
    HKP-19297
    $8.95
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  • New - H&K HK P30SK Slim Short Slide Release Lever Set - HKP-18028
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    HK P30SK Slim Short Slide Release Lever Set

    H&K Heckler & Koch

    $89.95
    HK P30SK Slim/Short Slide Release Lever - German HK HK manufactured P30SK slimline style slide release set. This set replaces the factory P30SK stock slide release set that comes from the factory. The slim style set is shorter and thinner in design for...
    HKP-18028
    $89.95
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  • New - H&K HK P30, P30L, P30S, USPC, P2000 - 9mm Recoil Spring - HKP-01560
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    HK P30, P30L, P30S, USP Compact, P2000 - 9mm Recoil Spring

    H&K Heckler & Koch

    $34.95
    Recoil Spring New HK German manufacture recoil spring for guide rod. A must-have spare part and a common consumable item. Compatible With: USP Compact 9mm P2000 9mm P30, P30L & P30S 9mm models
    HKP-01560
    $34.95
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  • New - HKP AR Brace/Stock Adapter To HK 90 Series Firearms - HKP-16550 HK 90 Series to AR Stock or Brace Adapter
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    HK 90 Series to AR Stock or Brace Adapter

    HKP HK Parts

    $99.95
    HKP AR Brace/Stock Adapter To HK 90 Series Firearms For use on any commercial, mil-spec, or pistol AR15/M16/M4 stock, brace, & buffer tube of your choice. Perfect for your HK rifle, pistol, or SBR build. With our M4 adapter, you can use your existing...
    HKP-16550
    $99.95
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  • Used - H&K Full Auto Paddle Magazine Release Bushing HK German - Used - HKP-02303
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    HK Full Auto Paddle Magazine Release Bushing HK German - Used

    H&K Heckler & Koch

    $4.95
    H&K Full Auto Paddle Magazine Release Bushing HK German - Used This part is for use in all 90-series H&K weapon systems. Used for installing a paddle mag release. Please Note: This is not for use on semi-auto HK builds. This part is used for...
    HKP-02303
    $4.95
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    $4.95
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  • New - H&K HK VP9 Match OR Slide Conversion - HKP-21096 HK VP9 Match OR Slide Conversion
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    HK VP9 Match OR Slide Conversion

    H&K Heckler & Koch

    $549.00
    Slide Conversion VP9 Match OR - Complete Elevated Sights The VP9 match optics-ready kit quickly and easily converts a standard VP9 or VP9-B to a competition-ready match optics-ready model. No additional parts or tools are needed for assembly. Just swap...
    HKP-21096
    $549.00
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  • New - HKP MP5K Enhanced SD Shroud - HKP-00849 HK MP5KSD, SP89 Barrel Shroud - Enhanced
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    HK MP5KSD, SP89 Barrel Shroud - Enhanced

    HKP HK Parts

    $119.95
    HK Parts MP5K SD Barrel Shroud For SP89 and MP5K Conversion Our MP5K SD shroud is a the best option for those who want to build a custom MP5K SD model. Made in the USA.
    HKP-00849
    $119.95
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  • New - H&K Cocking Tube End Cap/Dust Cap - HKP-00099
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    HK90 Series Cocking Tube End Cap

    H&K Heckler & Koch

    $39.95
    H&K Cocking Tube End Cap/Dust Cap This part is Factory HK, painted black and not surplus or old stock. Each is factory-fresh and manufactured in steel. Compatible With: Compatible with all 90 series HK firearms and clones that use a triple...
    HKP-00099
    $39.95
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  • New - AC-Unity HK PSG1 Style Sniper Pistol Grip - HKP-21628 HK G3 Pistol Grip - PSG1 Sniper Style
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    HK G3 Pistol Grip - PSG1 Sniper Style

    AC-Unity

    $39.95
    AC-Unity HK PSG1 Style Sniper Pistol Grip The new AC Unity Pistol Grip/Sniper Grip is a great upgrade if you want the PSG1 style grip frame for your HK firearm. The grip features an ambidextrous palm shelf for increased stability and weapon control...
    HKP-21628
    $39.95
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  • New - H&K 10 Round HK VP9SK/P30SK/P2000SK Magazine Spring - HKP-01480
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    HK VP9SK, P30SK, P2000SK Magazine Spring - 10 Round

    H&K Heckler & Koch

    $6.95
    Magazine Spring  A great wear and replacement item as this is a consumable part and prone to wear and tear. If your slide is not locking back on the last round or you are having issues with reliable feeding, the magazine spring may be fatigued and...
    HKP-01480
    $6.95
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    $6.95
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