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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  • 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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  • HK91, G3 Telescopic Stock - 4 Position HK91, G3 Telescopic Stock - 4 Position
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    HK91, G3 Telescopic Stock - 4 Position

    MKE

    $517.95
    MKE HK91 G3 4 Position Telescopic Stock Telescopic stock designed for HK91 and G3 platform rifles. Modified to provide four adjustable length-of-pull positions to customize fit. Specifications: Steel rails and components Telescopic system Simple...
    HKP-22712
    $517.95
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  • HK91, G3 JMK PRS Hybrid Stock - Walnut HK91, G3 JMK PRS Hybrid Stock - Walnut
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    HK91, G3 JMK PRS Hybrid Stock - Walnut

    JMK

    $387.95
    HK91, G3 JMK PRS Hybrid Stock - Walnut The JMK HK91 PRS hybrid wood stock comes fully assembled and ready for a quick and easy install. This custom hybrid stock is based on the Magpul PRS Lite design, with an old-school wood-stock look. The walnut part...
    HKP-22409
    $387.95
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  • HK G3, HK417, HK33, HK53, HK93 Flash Hider - 5/8x24 - Plan B Taper Mount HK G3, HK417, HK33, HK53, HK93 Flash Hider - 5/8x24 - Plan B Taper Mount
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    HK G3, HK417, HK33, HK53, HK93 Flash Hider - 5/8x24 - Plan B Taper Mount

    JMAC Customs

    $116.95
    5/8x24 - Plan B Taper Mount Flash Hider for HK G3, HK417, HK33, HK53, HK93  The 360HD is the latest evolution in JMac Custom's Recoil Reduction Device (RRD) family of muzzle brakes, designed to meet the needs of serious shooters...
    HKP-22412
    $116.95
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  • Used - HK91, G3, HK33, HK53, HK93 Anti-Rattle Mag Release - USED - HKP-22061 HK91, G3, HK33, HK53, HK93 Paddle Magazine Release - Anti-Rattle - USED
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    HK91, G3, HK33, HK53, HK93 Paddle Magazine Release - Anti-Rattle - USED

    H&K Heckler & Koch

    $42.95
    Heckler and Koch Anti Rattle Paddle Magazine Release for HK91, HK G3s and HK33, HK53, HK93 - USED This is a used German anti-rattle paddle mag release for installation on all Heckler and Koch Firearms .223 and .308 rifles. Compatible With: HK91,...
    HKP-22061
    $42.95
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  • New - B&T HK G3 Side Rail - Short - HKP-21775 HK91, G3, MP7, G36 Side Rail - Short
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    HK91, G3, MP7, G36 Side Rail - Short

    B&T Brugger & Thomet

    $42.00
    B&T HK G3/HK91, G36, MP7 Side Rail - Short Swiss made B&T short side rail for the B&T quad rail handguard. Compatible With B&T Handguards For: HK91/G3 G36 MP7
    HKP-21775
    $42.00
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  • Used - H&K 91/G3 (7.62x51/.308) A3 Retractable Stock - Excellent - HKP-00828 H&K 91/G3 (7.62x51/.308) A3 Retractable Stock - Excellent || HKP-00828 || HKPARTS
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    HK91, G3 A3 Retractable Buttstock - Excellent

    H&K Heckler & Koch

    $999.95
    HK G3 & HK 91 A3 Retractable Stock - German These are the final units available no longer produced or offered by HK Germany. Each stock includes two large push pins as a bonus. A beautiful upgrade that truly elevates your G3 or 91 build. Once...
    HKP-00828
    $999.95
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  • New - H&K Full Auto Trigger Box - SEF - MP5/94/G3/91/93/53/33 - HKP-02178
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    HK MP5, HK94, G3, HK91, HK3, HK53, HK93 Trigger Housing - Full Auto SEF

    H&K Heckler & Koch

    $299.95
    H&K Full Auto Trigger Box - SEF - MP5/94/G3/91/93/53/33 This genuine HK trigger box can house either the full auto SEF trigger pack internals or be converted to the semi-auto configuration. Not for use with ambidextrous trigger packs, selectors, or...
    HKP-02178
    $299.95
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  • On Sale
    HK91, G3 Magazine - 20 Round - LEO Laser Marked - Parkerized - BLEMISHED HK91, G3 Magazine - 20 Round - LEO Laser Marked - Parkerized - BLEMISHED
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    HK91, G3 Magazine - 20 Round - LEO Laser Marked - Parkerized - BLEMISHED

    H&K Heckler & Koch

    Now: $41.95
    Was: $59.95
    Heckler and Koch 20 Round Rare LEO Laser Marked Steel Magazine for HK91 and HK G3 BLEMISHED  ONLY 1 UNIT AVAILABLE - AS PICTURED POOR AND UNFINISHED LASER MARKING COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT...
    HKP-19333-B
    Now: $41.95
    Was: $59.95
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  • WOOX Angled Grip - M-LOK - AFG WOOX Angled Grip - M-LOK - AFG
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    WOOX Angled Grip - M-LOK - AFG

    WOOX

    $88.95
    WOOX M-LOK Angled Grip Compact angled foregrip for M-LOK handguards, built with a reversible dual-wall structure and checkered texture for a secure, consistent support-hand index. Features: Flat-bottom design for added stability and...
    HKP-22465
    $88.95
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  • HK G3 - FMP Early Type Demilled Front End - No Cocking Handle Assembly FMP HK CONTRACT HKP-22377 HK G3 - FMP Early Type Demilled Front End - No Cocking Handle Assembly FMP HK CONTRACT HKP-22377
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    HK FMP G3 Early Type De-Milled Front End - No Cocking Handle Assembly

    FMP HK CONTRACT

    $68.95
    HK G3 - FMP Early Type De-milled Front End - No Cocking Handle Assembly Early style G3 front end with no hanger from de-milled FMP G3 parts kits. Perfect for custom builds.  Includes: Cocking tube Trunnion Barrel pin
    HKP-22377
    $68.95
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  • HK G3 Stock Cut Off Section - OD Green FMP HK CONTRACT HKP-22376 HK G3 Stock Cut Off Section - OD Green FMP HK CONTRACT HKP-22376
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    HK G3 Stock Cut Off Section - OD Green

    FMP HK CONTRACT

    $2.45
    HK G3 Stock Cut Off Section - OD Green De-milled G3 stock section. Manufactured by FMP on HK tooling. Compatible With: HK G3, HK91 In-spec. clones and custom builds
    HKP-22376
    $2.45
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    $2.45
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