HK Rifle / SMG Parts

HK Rifle / SMG Parts

Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!

Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.

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  • New - H&K HK MR556/416 Ejector Spring - HKP-02538
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    HK416, MR556 Ejector Spring

    H&K Heckler & Koch

    $39.99
    HK 416 & MR556 Ejector Spring Compatible With: MR556 HK 416
    HKP-02538
    $39.99
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    $39.99
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  • New - H&K G36 (5.56/.223) Catch, Trip Lever - HKP-01870 HK G36 (5.56/.223) Catch, Trip Lever
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    HK G36 (5.56/.223) Catch, Trip Lever

    H&K Heckler & Koch

    $14.95
    HK G36 Catch, Trip Lever For Bolt Contact On All G36 Lowers      
    HKP-01870
    $14.95
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    $14.95
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  • New - H&K USC/SL8 (.45 ACP/5.56/.223) Left Selector Lever - HKP-02506 HK USC/SL8 (.45 ACP/5.56/.223) Left Selector Lever
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    HK USC/SL8 (.45 ACP/5.56/.223) Left Selector Lever

    H&K Heckler & Koch

    $11.95
    H&K USC/SL8 (.45 ACP/5.56/.223) Left Selector Lever HK German USC, SL8 left side selector lever 2 position 0,1 Safe, Semi only. Compatible With: HK SL8 HK USC
    HKP-02506
    $11.95
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  • Out Of Stock
    New - Solar Tactical HK USC (.45 ACP) Kydex Grip Wrap - HKP-18890 HK USC Grip Wrap - .45 ACP - Kydex

    HK USC Grip Wrap - .45 ACP - Kydex

    Solar Tactical

    $79.95
    Kydex Grip Wrap - Ambidextrous - HK USC Featureless Kydex grip wrap for use with detachable magazines. Prevents a wrap around style pistol grip. Allows the use of the factory magazine release and detachable magazines over 10 rounds. Preban hi-capacity...
    HKP-18890
    $79.95
    Out Of Stock
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  • Out Of Stock
    New - H&K PSG1/MSG90 (7.62x51/.308) Trigger Shoe Adjustment Tool - HKP-18181 HK PSG1, MSG90 Trigger Shoe Adjustment Tool

    HK PSG1, MSG90 Trigger Shoe Adjustment Tool

    H&K Heckler & Koch

    $19.95
    HK German Factory PSG-1, MSG90 Trigger Shoe Adjustment Tool A custom tool that allows you take the trigger shoe on and off and make Compatible With: HK PSG1 & MSG90 trigger shoes
    HKP-18181
    $19.95
    Out Of Stock
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  • New - H&K 91/G3 (7.62x51/.308) Complete Trigger Pack - Semi Auto - HKP-00217
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    HK91, G3 Trigger Pack - Complete - Semi Auto

    H&K Heckler & Koch

    $348.95
    H&K G3/91 (7.62x51/.308) Complete Trigger Pack - Semi Auto HK German manufactured trigger pack complete with all the parts being professionally converted from a factory German F/A trigger pack to semi-only.  Compatible With: HK91, G3, PTR...
    HKP-00217
    $348.95
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  • Out Of Stock
    Used - FMP HK 91/G3 (7.62x51/.308) Complete Bolt Head - HK Contract FMP - Used - HKP-17628 HK91, G3 Complete Bolt Head - HK Contract FMP - Used

    HK91, G3 Complete Bolt Head - HK Contract FMP - Used

    H&K Heckler & Koch

    $59.95
    HK CONTRACT FMP - HK G3 & HK 91 & PTR Bolt Head Complete Made on HK tooling & prints in Portugal in the 1980's. Each used bolt head is complete with all parts installed & 100% functional. Removed from de-milled FMP HK G3 rifles. Each bolt...
    HKP-17628
    $59.95
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  • New - H&K 93/91/33/53/G3 (5.56/.223) & (7.62x51/.308) Bolt Locking Lever Axle Pin - HKP-17624
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    HK33, HK53, HK93, HK91, G3 Bolt Locking Lever Axle Pin

    H&K Heckler & Koch

    $9.95
    HK Bolt Carrier Bolt Locking Lever Axle Pin - G3, 91, PTR & HK93, 33, 53 Brand new HK German bolt locking lever axle pin or cylinder pin for HK locking levers. Compatible With: G3, 91, PTR HK 93, 33, 53 HK21, 23, 11, 13 PSG1, MSG90
    HKP-17624
    $9.95
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    $9.95
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  • HK German Bayonet Adapter With Hardware HK German Bayonet Adapter With Hardware
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    HK German Bayonet Adapter With Hardware

    H&K Heckler & Koch

    $159.95
    H&K German Bayonet Adapter With Hardware HK German Bayonet Adapter W/ Hardware made under a Turkish contract. The HK bayonet adapter replaces the cocking tube end cap (dust cap). Then the bayonet slides into the spring-loaded mechanism in the...
    HKP-00021
    $159.95
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    $159.95
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  • New - Picatinny to Harris Bipod Adapter - HKP-00909 Harris Bipod Adapter - Long - Picatinny
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    Harris Bipod Adapter - Long - Picatinny

    HKP HK Parts

    $34.95
    Harris Bipod Adapter  This mounts to any Picatinny rail and proves a stable platform to add a Harris bipod or other similar-style bipod. This will fit any Picatinny spec rail or rail system. Made in the US out of aircraft-grade aluminum and steel.
    HKP-00909
    $34.95
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  • HK MP5 to AR Stock and Adapter
HK MP5 to AR Stock and Adapter
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    HK MP5 to AR Stock and Adapter

    HKP HK Parts

    $229.95
    HKP MP5 to AR Adapter & Stock Complete Each AR stock, brace adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct H buffers to protect your expensive firearm. This is the finest AR stock...
    HKP-17119
    $229.95
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  • Used - G3 A2 Adjustable Stock Extension - HKP-00872 G3 A2 Adjustable Stock Extension USA HKP-00872
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    HK G3 A2 Adjustable Stock Extension

    USA

    $69.95
    HK G3 A2 Adjustable Stock Extension Each stock extension is adjustable in 1/2" increments to enable you to achieve the proper length of trigger pull. This allows you a full 1.50" in length adjustments. These extensions are manufactured using high-impact,...
    HKP-00872
    $69.95
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