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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  • 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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  • On Sale
    AIM HK 91 Carbine Length Handguard - Keymod - BLEMISHED AIM HKP-18178-B AIM HK 91 Carbine Length Handguard - Keymod - BLEMISHED AIM HKP-18178-B
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    HK91 Handguard - Carbine Length - Keymod - BLEMISHED

    AIM

    Now: $48.95
    Was: $69.95
    AIM HK 91 Carbine Length Handguard - Keymod - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This sleek streamlined...
    HKP-18178-B
    Now: $48.95
    Was: $69.95
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  • Used - H&K G3/91 (.22LR) Caliber Conversion Kit - LIKE NEW - HKP-22093 HK91, G3 Caliber Conversion Kit - .22LR
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    HK91, G3 Caliber Conversion Kit - .22LR

    H&K Heckler & Koch

    $1,895.95
    Heckler and Koch HK G3, HK91 .22LR Caliber Conversion Kit - LIKE NEW SOLD AS IS. NO RETURNS. Convert any HK91 or HK G3 rifle to cycle .22LR ammunition with this genuine HK caliber conversion kit. This kit is intended for marksmanship training and...
    HKP-22093
    $1,895.95
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    $1,895.95
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  • Used - EBO HK G3, 91, PTR Bolt Head Complete - Used - HKP-21903 HK91, G3, PTR Bolt Head - Complete - Used
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    HK91, G3, PTR Bolt Head - Complete - Used

    EBO

    $99.95
    EBO HK G3 & HK 91 & PTR Bolt Head Complete - Used Greek HK Contract Date Coded EBO bolt head is manufactured in Greece by Hellenic Arms Industry, utilizing HK tooling and prints. Since the 1980s, it has proven to be one of the best upgrades for...
    HKP-21903
    $99.95
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    $99.95
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  • On Sale
    HK Cocking Tube End Cap - Dust Cap - BLEMISHED HK MP5, HK91, G3, HK33 Cocking Tube End Cap - Incomplete - BLEMISHED
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    HK MP5, HK91, G3, HK33 Cocking Tube End Cap - Incomplete - BLEMISHED

    H&K Heckler & Koch

    Now: $21.95
    Was: $39.95
    H&K Cocking Tube End Cap/Dust Cap - BLEMISHED SOLD INDIVIDUALLY - VARYING CONDITION SHOWN INCOMPLETE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This part...
    HKP-00099-B
    Now: $21.95
    Was: $39.95
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    Now: $21.95
    Was: $39.95
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  • HK G3K, HK33K Flash Hider - 4 Prong - Open
HK G3K, HK33K Flash Hider - 4 Prong - Open
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    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
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  • Out Of Stock
    Used - H&K G3K/51 (7.62x51/.308) Rear Sight Drum - HKP-02049

    HK G3K, 51 Rear Sight Drum - 7.62 / .308

    H&K Heckler & Koch

    $104.95
    HK German G3K, HK51, SL6, & SL7 Rear Sight Drum Hard to find and no longer made or imported. Compatible With: G3K HK51 SL6 SL7
    HKP-02049
    $104.95
    Out Of Stock
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    $104.95
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  • Used - H&K 91/G3 (7.62x51/.308) Complete Bolt Head - Used - HKP-00206 HK91, G3 Complete Bolt Head - Used
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    HK91, G3 Complete Bolt Head - Used

    H&K Heckler & Koch

    $179.95
    German HK G3 & HK 91 & PTR Bolt Head Complete - Used German "IC" Date Coded Made On HK tooling & prints in Germany in 1983 . Each used bolt head is complete with all parts installed & 100% functional. Taken from live demilled German HK G3...
    HKP-00206
    $179.95
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    $179.95
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  • New - H&K G3/91/PTR (7.62x51/.308) 4 Position (0,1,3,F Pictogram) Double Tang Trigger Housing- Clipped & Pinned - HKP-01515 HK91, G3 Trigger Housing - Double Tang 4 Position 0,1,3,F Pictogram - Clipped and Pinned
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    HK91, G3 Trigger Housing - Double Tang 4 Position 0,1,3,F Pictogram - Clipped and Pinned

    H&K Heckler & Koch

    $534.95
    HK Heckler and Koch 4 Position 0,1,3,F Pictogram Double Tang Trigger Housing, Clipped and Pinned for HK G3 and HK91 and PTR  This ambidextrous HK trigger housing features a 4 position pictogram 0,1,3,F and is set up in a semi-auto clipped and pinned...
    HKP-01515
    $534.95
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    $534.95
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  • Out Of Stock
    New - H&K 33/91/93/G3 Steel Bipod - Surplus - HKP-00215 HK33, HK91, G3 Steel Bipod - Surplus

    HK33, HK91, G3 Steel Bipod - Surplus

    H&K Heckler & Koch

    $349.95
    H&K 33/91/93/G3 Steel Bipod - Surplus - For Use With The HK Wide Forearm. Genuine surplus HK factory bipod. These bipods have long been out of production from HK.  Bipods are only compatible with the wide forearm with integrated stowage grooves...
    HKP-00215
    $349.95
    Out Of Stock
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    $349.95
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  • Out Of Stock
    New - H&K 91/93/33/53/G3 (5.56/.223) & (7.62x51/.308) 1200 Meter Rear Sight - 3rd Generation - HKP-00561 HK33, HK53, HK93, HK91, G3 1200 Meter Rear Sight - 3rd Generation

    HK33, HK53, HK93, HK91, G3 1200 Meter Rear Sight - 3rd Generation

    H&K Heckler & Koch

    $0.00
    HK German 3rd Gen 1200 Meter Rear Sight. New HK German Manufacture. No longer in production
    HKP-00561
    $0.00
    Out Of Stock
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    $0.00
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  • Out Of Stock
    Used - HK Locking Roller -4 , 7.96mm - HKP-17558 HK Locking Roller -4 , 7.96mm

    HK Locking Roller -4 , 7.96mm

    HKP HK Parts

    $8.95
    7.96mm - Undersized -4 Roller For HK Roller Lock Bolt HeadHK spec under-sized roller that will fit all HK bolt heads including HK91/G3, HK93/33/53, HK94, MP5, SP89 all clones and the Cetme & Cetme clones. An easy way to remember the size you need to...
    HKP-17558
    $8.95
    Out Of Stock
    Qty in Cart: 0
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    $8.95
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