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
    New - HK MP5 4" Cocking Tube Extrusion - Gunsmith Special - HKP-99060
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    HK MP5 Cocking Tube - Extrusion - 4" - Gunsmith Special

    USA

    Now: $14.95
    Was: $39.95
    HK MP5 4" Cocking Tube Extrusion - Gunsmith Special This 4" cocking tube extrusion is ideal for custom HK-style firearm builds, repairs, or refurbishments, providing a solid foundation for restoring or fabricating cocking tubes on HK MP5, G3, and similar...
    HKP-99060
    Now: $14.95
    Was: $39.95
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  • New - B&T HK G3/91 (7.62x51/.308) Flash Hider for M.A.R.S Suppressor - Threaded 15x1 RH - HKP-21518 HK G3/91 (7.62x51/.308) Flash Hider for M.A.R.S Suppressor - Threaded 15x1 RH
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    HK G3/91 (7.62x51/.308) Flash Hider for M.A.R.S Suppressor - Threaded 15x1 RH

    B&T Brugger & Thomet

    $109.95
    B&T HK G3/91 (7.62x51/.308) Flash Hider for M.A.R.S Suppressor - Threaded 15x1 RH Compatible With: HK G3/91/PTR HK417/MR762 HK PSG1 7.62x51/.308 firearms threaded 15x1 RH Compatible With the Following Suppressors: M.A.R.S QD...
    HKP-21518
    $109.95
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  • Used - HK G3 - FMP Early Type Demilled Front End - HKP-20845 HK G3 - FMP Early Type Demilled Front End
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    HK G3 - FMP Early Type Demilled Front End

    FMP HK CONTRACT

    $99.95
    HK G3 - FMP Early Type Demilled Front End Early style G3 front end with no hanger. These are the perfect option for those doing custom builds. Good condition over all. Includes: Cocking tube Complete cocking handle assembly Trunnion Barrel pin
    HKP-20845
    $99.95
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  • Out Of Stock
    New - MM HK PSG1/MSG90/91/G3 (7.62x51/.308) T-Rail Reinforcement Set For Receiver - HKP-00236

    HK91, G3, PSG1, MSG90 T-Rail Reinforcement Set for Receiver

    Michaels Machines

    $299.95
    HK Receiver Reinforcement T-Rail Set For Left and Right Sides T-rails are used to strengthen HK receivers or for custom builds. These are the finest T-rails available on the market. Made from enhanced steel and perfect for that custom HK project...
    HKP-00236
    $299.95
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  • Out Of Stock
    New - H&K 91/G3 (7.62x51/.308) Magazine Loader - HKP-00221 HK91, G3 Magazine Loader

    HK91, G3 Magazine Loader

    H&K Heckler & Koch

    $0.00
    HK Factory Loader for HK 91/G3 Magazines   Compatible With: HK 91 magazines HK G3 magazines PTR-91 Magazines HK PSG1 magazines HK MSG-90 magazines HK 90 series 308 magazines
    HKP-00221
    $0.00
    Out Of Stock
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  • New - HK91, G3, PTR Folding Stock - HKP-00516 HK91, G3, PTR Folding Stock
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    HK91, G3, PTR Folding Stock

    Choate

    $144.95
    HK 91, G3, PTR Side Folding Stock No gunsmith is needed as this is an easy install using your hardware from your existing fixed A2 stock. This counts as one US-made compliant part. Compatible With: HK91 G3 PTR91  Also fits HK93 and 33-style rifles...
    HKP-00516
    $144.95
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  • New - HKP HK 91/G3 (7.62x51/.308) Ambidextrous Trigger Pack (0,1) - HKP-17232 HK91, G3 Ambidextrous  Trigger Pack (0,1)
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    HK91, G3 Ambidextrous Trigger Pack (0,1)

    HKP HK Parts

    $362.95
    HKP/H&K G3/91 (7.62x51/.308) 2 Position 0,1 Ambidextrous Trigger Pack Finally, a lower cost alternative to the expensive and rare all-German FBI & 0,1 ambi trigger packs.  Each trigger pack comes 100% complete, ready to use in your...
    HKP-17232
    $362.95
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  • New - Raddlock 91/G3 (7.62x51/.308) Magazine Sled - HKP-02448 Raddlock 91/G3 (7.62x51/.308) Magazine Sled
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    Raddlock 91/G3 (7.62x51/.308) Magazine Sled

    Raddlock

    $12.95
    Magazine Block for HK G3,91, PTR .308 Rifles. The Raddlock magazine block converts a mag-fed rifle to a single-shot rifle as dictated by certain restrictive states.  Once installed, the rifle will only be able to be loaded through the ejection port...
    HKP-02448
    $12.95
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  • Out Of Stock
    New - PTR HK 91/G3 (7.62x51/.308) Slimline Forearm - HKP-16251 HK91, G3 Slimline Handguard

    HK91, G3 Slimline Handguard

    PTR

    $39.95
    New Slim Line HK91, G3, PTR Forearm- US Each forearm is a new US made offering made on the original HK tooling acquired by PTR91. Black in color, no internal heat shield. This hand guard also counts as 1 desirable US compliant part for your HK 91, G3...
    HKP-16251
    $39.95
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  • New - H&K Fixed Stock Buttpad - Alpine Green - HKP-17027 HK Fixed Stock Buttpad - Alpine Green
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    HK Fixed Stock Buttpad - Alpine Green

    H&K Heckler & Koch

    $79.95
    H&K Fixed Stock Buttpad - Alpine Green Perfect for A2 G3, 91, PTR91 & HK33, 53, 93 fixed stocks. This is a factory German brand new in HK wrapping German part.
    HKP-17027
    $79.95
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  • On Sale
    HK Handguard Sling Pin - Ambi - Small - USED HK Handguard Sling Pin - Ambi - Small - USED
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    HK Handguard Sling Pin - Ambi - Small - USED

    H&K Heckler & Koch

    Now: $42.95
    Was: $61.95
    HK Handguard Sling Pin - Ambi - Small - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. This ambidextrous pin will allow the user to attach a sling hook to...
    HKP-00077-USED
    Now: $42.95
    Was: $61.95
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  • WOOX Vertical Grip - M-LOK WOOX Vertical Grip - M-LOK
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    WOOX Vertical Grip - M-LOK

    WOOX

    $88.95
    WOOX HK Rifle, SMG M-LOK Vertical Grip This M-LOK vertical grip is a compact, ambidextrous foregrip made from American walnut with a reversible dual-wall design (vertical wall AND curved wall) to suit different grip styles. The checkered texture is...
    HKP-22464
    $88.95
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