HK91 / G3 / HK51 Series

HK91 / G3 / HK51 Series

Discover the ultimate collection of parts for your HK G3 and HK 91, designed to enhance precision, reliability, and performance. Featuring G3 Stocks for improved ergonomics, 91 Barrels for superior accuracy, and G3 Triggers for enhanced responsiveness. Our selection also includes 91 Handguards for advanced protection and control, G3 Forearms for optimal handling, and detailed Parts Kits to fully equip your firearm for any scenario. Each component is engineered for flawless compatibility with your HK G3 or HK 91, ensuring your rifle meets the highest standards of operation and craftsmanship.

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  • Used - H&K A3 Retractable Stock Clamping Lever Spring - HKP-01089
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    HK A3 Buttstock Clamping Lever Spring - Retractable

    H&K Heckler & Koch

    $19.95
    HK German Retractable Stock Clamping Lever Spring For A3 Retractable Stocks This spring is the most common breakage/wear item in the internal workings of the A3 retractable stock.
    HKP-01089
    $19.95
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    $19.95
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  • New - Full AutoTrigger Pack Elbow Spring W/ Roller - HKP-02438 HK MP5, HK91, G3 Elbow Spring with Roller - Trigger Pack - Full Auto
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    HK MP5, HK91, G3 Elbow Spring with Roller - Trigger Pack - Full Auto

    H&K Heckler & Koch

    $44.95
    Full AutoTrigger Pack Elbow Spring W/ Roller This item is a factory HK German replacement part.
    HKP-02438
    $44.95
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    $44.95
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  • Used - H&K G3 Parts Kit - RCM Barrel - HKP-16577 HK91, G3 Parts Kit - RCM Barrel
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    HK91, G3 Parts Kit - RCM Barrel

    H&K Heckler & Koch

    $518.95
    HK German G3 .308/7.62 X 51mm Surplus Parts Kit Finally, after more than 4 years of searching the globe, we have HK German Surplus G3 parts kits available to offer. Each parts kit comes complete with all parts from a functional HK G3 full auto rifle that...
    HKP-16577
    $518.95
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    $518.95
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  • Used - FMP HK G3 (7.62x51/.308) Parts Kit (HK Contract) - HKP-17694 HK G3 Parts Kit - FMP (HK Contract)
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    HK G3 Parts Kit - FMP (HK Contract)

    H&K Heckler & Koch

    $299.95
    HK Contract Portuguese FMP G3 .308/7.62 X 51mm Surplus Parts Kit Each parts kit comes complete with all parts from a functional HK G3 full auto rifle that was demilled into a parts kit with the exception of the barrel and receiver. As per BATFE import...
    HKP-17694
    $299.95
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    $299.95
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  • Out Of Stock
    New - H&K -2 Roller For Bolt Head 7.98mm - Under-sized - HKP-00505 HK -2 Roller For Bolt Head 7.98mm - Under-sized

    HK -2 Roller For Bolt Head 7.98mm - Under-sized

    H&K Heckler & Koch

    $19.95
    H&K -2 Roller For Bolt Head 7.98mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. New HK German not surplus or used goods. German-made -2 roller. Please Note: The price listed is per roller. Order 2 (pair) for...
    HKP-00505
    $19.95
    Out Of Stock
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    $19.95
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  • New - SchleTek B&T Suppressor Cleaner Evolution 500ml - HKP-21715
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    Suppressor Cleaner Evolution - 500ml

    SchleTek

    $38.00
    SchleTek Suppressor Cleaner Evolution 500ml A highly effective, easy-to-use cleaner for all suppressor types. Its self-active formula tackles stubborn fouling quickly, eliminating laborous cleaning. The SchleTek cleaner is safe for all materials and...
    HKP-21715
    $38.00
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    $38.00
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  • New - B&T (7.62x51/.308) Flash Hider - Suppressor Compatible - Threaded 5/8x24 RH - HKP-21395 B&T (7.62x51/.308) Flash Hider - Suppressor Compatible - Threaded 5/8x24 RH
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    B&T (7.62x51/.308) Flash Hider - Suppressor Compatible - Threaded 5/8x24 RH

    B&T Brugger & Thomet

    $144.99
    B&T (7.62x51/.308) Flash Hider - Suppressor Compatible - Threaded 5/8x24 RH This flash hider is compatible with many suppressors. A perfect addition to any firearm. Specifications: Made in Switzerland Threaded 5/8x24 UNEF Does not include face...
    HKP-21395
    $144.99
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    $144.99
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  • Out Of Stock
    New - HK G3K Cocking Tube - HKP-01462 HK G3K Cocking Tube

    HK G3K Cocking Tube

    $89.95
    G3 Cocking Tube For PTR 91K Or G3K Projects - New Perfect for that custom HK build. These are made by PTR to the correct specifications. We do not use cut-down or Pakistani materials, we only use the best US and German hardware. Compatible With: HK G3K...
    HKP-01462
    $89.95
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    $89.95
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  • New - PTR HK 91/G3 (7.62x51/.308) Trigger Group - 5 U.S. 922 Parts - HKP-02643 HK91, G3 Trigger Group - 5 U.S. 922 Parts
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    HK91, G3 Trigger Group - 5 U.S. 922 Parts

    PTR

    $369.95
    HK 91, G3, & PTR91 Semi Auto Trigger Group Complete This lower is ready to drop on your semi-auto HK firearm. It comes complete with the US-made parts already installed. The remaining parts are all German HK parts to make up the rest of the trigger...
    HKP-02643
    $369.95
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    $369.95
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  • On Sale
    New - Picatinny to Harris Bipod Adapter - Universal - HKP-21528 Harris Bipod Adapter - Picatinny - US
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    Harris Bipod Adapter - Picatinny - US

    HKP HK Parts

    Now: $9.95
    Was: $33.95
    Harris Bipod Adapter  This mounts to any Picatinny rail and proves a stable platform to add a Harris bipod or other similar-mounting bipods. This will fit any Picatinny spec rail or rail system. Made in the US out of aircraft-grade aluminum and...
    HKP-21528
    Now: $9.95
    Was: $33.95
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    Now: $9.95
    Was: $33.95
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  • New - Left Side Ambidextrous Selector Lever FBI - 0,1 - HKP-00121 Left Side Ambidextrous Selector Lever FBI - 0,1
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    Left Side Ambidextrous Selector Lever FBI - 0,1

    H&K Heckler & Koch

    $124.99
    Left Side Ambidextrous Selector Lever FBI - 0,1 Compatible with all ambi style housings and ambidextrous 0,1, trigger packs and housings.
    HKP-00121
    $124.99
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  • Out Of Stock
    New - PTR HK G3/91 (7.62x51/.308) GI Barrel - Threaded 5/8x24 - HKP-18435 HK91, G3 Barrel - 7.62 / .308 - 18" - Threaded 5/8x24

    HK91, G3 Barrel - 7.62 / .308 - 18" - Threaded 5/8x24

    PTR

    $214.95
    PTR HK G3/91 (7.62x51/.308) GI Barrel - Threaded 5/8x24 New PTR91 US made G.I. spec 18" barrel. Perfect for any barrel threaded 5/8x24. New production perfect for new builds. This part counts as one US made compliant part. Specifications: Overall Lenght...
    HKP-18435
    $214.95
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    $214.95
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