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 - HK G3 - FMP Early Type Demilled Front End - HKP-20845 HK G3 - FMP Early Type Demilled Front End

    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
    Qty in Cart: 0
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    $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
    Qty in Cart: 0
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    $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
    Qty in Cart: 0
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    $0.00
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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
    Qty in Cart: 0
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    $39.95
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  • New - H&K Full Auto Trigger Box - SEF - MP5/94/G3/91/93/53/33 - HKP-02178

    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
    Qty in Cart: 0
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  • HK91, G3 Retractable Buttstock Retaining Ring - 19x1.2mm

    HK91, G3 Retractable Buttstock Retaining Ring - 19x1.2mm

    H&K Heckler & Koch

    $12.95
    HK91, G3 19x1.2mm Retaining Ring for A3 Retractable Buttstocks This 19x1.2 retaining ring (circlip-style) is used in the G3 and HK91 A3 retractable buttstock assembly to help retain the locking components in place for proper fit and function. Compatible...
    HKP-22482
    $12.95
    Qty in Cart: 0
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    $12.95
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  • WOOX Angled Grip - M-LOK - AFG WOOX Angled Grip - M-LOK - AFG

    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
    Qty in Cart: 0
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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

    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
    Qty in Cart: 0
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    $68.95
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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

    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
    Qty in Cart: 0
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    $42.95
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  • HK G3K, HK33K Flash Hider - 4 Prong - Open
HK G3K, HK33K Flash Hider - 4 Prong - Open

    HK G3K, HK33K Flash Hider - 4 Prong - Open

    RCM

    $187.95
    RCM HK G3K/HK33K Flash Hider - 4 Prong - Open The RCM G3K and HK33K flash hider can be welded to a 12.69" barrel to achieve a non-SBR OAL of 16 plus inches or add to any other configuration. Made in the US from ordnance grade steel and counts as 1 922r...
    HKP-21599
    $187.95
    Qty in Cart: 0
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    $187.95
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  • HK91, G3 Trigger Pack - Semi-Auto - Ambi HK91, G3 Trigger Pack - Semi-Auto - Ambi

    HK91, G3 Trigger Pack - Semi-Auto - Ambi

    HKP HK Parts / Heckler & Koch

    $349.95
    HKP Ambidextrous Semi-Auto Trigger Pack for HK91 and G3 - .308 HKP ambidextrous semi-auto trigger pack for HK91 and G3 pattern rifles in .308. Built from USA and German components, this steel trigger pack comes assembled and ready to install for...
    HKP-22855
    $349.95
    Qty in Cart: 0
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    $349.95
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  • On Sale
    PTR91 Extractor - BLEMISHED PTR91 Extractor - BLEMISHED

    PTR91 Extractor - BLEMISHED

    PTR

    Now: $7.46
    Was: $12.95
    PTR Extractor for PTR91 - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. PTR extractor for PTR91 rifles, designed as a replacement extractor for proper...
    HKP-99457
    Now: $7.46
    Was: $12.95
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    Now: $7.46
    Was: $12.95
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