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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  • On Sale
    Used - H&K 91/G3 (7.62x51/.308) Fixed Stock with Enhanced Heavy Buffer - OD Green - Surplus - HKP-18932 HK91, G3 Fixed Stock with Enhanced Heavy Buffer - OD Green - Surplus
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    HK91, G3 Fixed Stock with Enhanced Heavy Buffer - OD Green - Surplus

    H&K Heckler & Koch

    Now: $116.95
    Was: $129.95
    HK 91, G3 Fixed Stock with Enhanced Heavy Buffer Installed - OD Green - Surplus Used Olive Drab green German surplus stock complete with Enhance DMR buffer installed. Ready to drop in on your HK or clone rifle. Used in perfect working condition. Each...
    Now: $116.95
    Was: $129.95
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    Was: $129.95
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  • On Sale
    New - HKP Torx Binary Upgrade Screw Set - HKP-21816
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    HK Torx Screw Set for Binary Selector Lever - Upgrade

    HKP HK Parts

    Now: $2.36
    Was: $2.95
    HKP Torx Binary Upgrade Screw Set Upgrade your binary selector levers with our Torx hardware set.  Torx hardware is less likely to strip than standard allen key hardware.  Good spares to have on hand as well. Note: Each set comes with 2 screws.
    Now: $2.36
    Was: $2.95
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  • On Sale
    New - Blitzkrieg HK MP5 Flat Front Sight Gen 2 - Orange - HKP-21101 HK MP5 Sight - Flat Front - Gen 2 - Orange
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    HK MP5 Sight - Flat Front - Gen 2 - Orange

    Blitzkrieg Components

    Now: $76.45
    Was: $84.95
    Blitzkrieg HK MP5 Flat Front Sight Gen 2 - Orange The Blitzkrieg Gen 2 HK-style front sight introduces a new level of precision and visibility. With a conventional flat-tipped post and a bright orange stripe, this sight ensures quick and clear target...
    Now: $76.45
    Was: $84.95
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    New - H&K 45mm Picatinny Rail Cover - Black - Universal - HKP-18857 HK 45mm Picatinny Rail Cover - Universal

    HK 45mm Picatinny Rail Cover - Universal

    H&K Heckler & Koch

    Now: $13.46
    Was: $14.95
    H&K 45mm Picatinny Rail Cover - Universal New factory HK rubberized picatinny rail cover. Specifications: Rail cover dimensions: 45x26x7 mm Compatible With: HK picatinny rails Other Picatinny railed applications
    Now: $13.46
    Was: $14.95
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  • On Sale
    New - Magpul HK G3 / HK 91 PRS Gen 3 Stock - HKP-21172-M HK91, G3 Stock - PRS Gen 3
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    HK91, G3 Stock - PRS Gen 3

    Magpul

    Now: $386.95
    Was: $429.95
    Magpul HK G3 / HK 91 PRS Gen 3 Stock - Available in Multiple Color Options  The PRS GEN3 is a field precision stock for AR15/M16 and AR10/SR25 platforms, featuring tool-less length of pull and cheek piece height adjustment. With solid adjustments...
    Now: $386.95
    Was: $429.95
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    Now: $386.95
    Was: $429.95
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  • Out Of Stock
    New - Solar Tactical HK G3/K91 Kydex RH Grip Wrap - Black - HKP-18915 HK91, G3 Grip Wrap - Right - Kydex

    HK91, G3 Grip Wrap - Right - Kydex

    Solar Tactical

    $69.95
    Solar Tactical HK G3/K91 Kydex RH Grip Wrap 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...
    $69.95
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  • On Sale
    New - HKP Single Point Leather Sling - Black - HKP-20151 HK Single Point Leather Sling - Black
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    HK Single Point Leather Sling - Black

    HKP HK Parts

    Now: $39.96
    Was: $49.95
    Single Point Leather Sling - Black Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German...
    Now: $39.96
    Was: $49.95
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  • New - SureFire WARCOMP PTR (7.62x51/.308) Flash Hider - Threaded 5/8x24 - HKP-18024
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    HK G3, HK417 Flash Hider - WARCOMP - Threaded 5/8x24

    Surefire

    $159.95
    SureFire WARCOMP (7.62x51/.308) Flash Hider - Threaded 5/8x24 This flash hider is perfect for the post 2016 production PTR models as well as C308 models. Compatible With: HK G3/91/PTR HK 417/MR762 HK PSG1 B&T APR AR10 LR308 C308 7.62x51/.308...
    $159.95
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  • Used - H&K 91/G3 (7.62x51/.308) Complete Fixed Stock with Enhanced Heavy Buffer- Black - Surplus - HKP-16269
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    HK91, G3 Complete Fixed Stock with Enhanced Heavy Buffer- Black - Surplus

    H&K Heckler & Koch

    $269.95
    German G3, 91, PTR Stock complete - Surplus Used black German surplus stock complete. Ready to install on your HK or clone rifle. Used in perfect working condition and each stock includes all parts to be a complete stock ready to use on your HK G3, 91,...
    $269.95
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    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

    Now: $17.95
    Was: $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...
    Now: $17.95
    Was: $19.95
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  • Out Of Stock
    On Sale
    New - HK G3K Cocking Tube - HKP-01462 HK G3K Cocking Tube

    HK G3K Cocking Tube

    Now: $80.95
    Was: $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...
    Now: $80.95
    Was: $89.95
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    Was: $89.95
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  • On Sale
    New - H&K Cocking Tube End Cap Detent - HKP-18050
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    HK End Cap - Detent - Cocking Tube

    H&K Heckler & Koch

    Now: $4.46
    Was: $4.95
    HK German Cocking Tube End Cap/Dust Cap Detent HK German cocking tube detent for all steel and aluminum cocking tube end caps. Made of steel and finished in black.
    Now: $4.46
    Was: $4.95
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