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 - HK Ambidextrous Sling - Green - HKP-00183

    HK Ambidextrous Sling - Green

    H&K Heckler & Koch

    $149.95
    HK Ambidextrous Sling - Green  This sling is the factory HK Green 1.25" Ambi Sling with dual HK sling hooks for use on either the left or right side of the weapon. Best used with the ambi sling pins as the option shown below. Can be used on nearly...
    HKP-00183
    $149.95
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  • HK MP5, AP5 Magazine Catch Push Button
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    HK MP5, AP5 Magazine Catch Push Button

    MKE

    $6.95
    HK MP5, AP5 Magazine Catch Button Push button for magazine catchCompatible with: HK MP5, SP5 HK MP5K, SP5K HK SP89 HK94 HK33, HK53, HK93 HK91, G3 In-spec. clones and custom builds
    HKP-22548
    $6.95
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  • Muzzle Brake - 5.56 and .308 - Threaded 5/8x24 RH Muzzle Brake - 5.56 and .308 - Threaded 5/8x24 RH
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    Muzzle Brake - 5.56 and .308 - Threaded 5/8x24 RH

    HKP HK Parts

    $29.95
    HKP muzzle brake threaded 5/8x24 RH for 5.56/.223 and 7.62x51/.308 firearms This HKP muzzle brake is manufactured in the USA to HK specifications and is designed for use on 5.56 and .308 rifles. It features a partially milled birdcage-style design...
    HKP-22508
    $29.95
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  • M-LOK Angled Foregrip - Walnut M-LOK Angled Foregrip - Walnut
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    M-LOK Angled Foregrip - Walnut

    JMK

    $43.95
    JMK Angled foregrip M-LOK - Walnut JMK's M-LOK covers feature an integrated hand stop to ensure a secure grip during use. They are an excellent choice for pairing with JMK M-LOK Covers, providing your build with a high-quality finish. These covers are...
    HKP-22405-M
    $43.95
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  • On Sale
    Used - HK G3 Buttpad - USED - HKP-99071 HK G3 Buttpad - USED
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    HK G3 Buttpad - USED

    USA

    Now: $4.95
    Was: $14.95
    HK G3 Buttpad - USED HK G3 buttpad, condition will vary from part-to-part vs. the pictured unit. Compatible With: HK G3 THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE.  SALE IS FINAL.
    HKP-99071
    Now: $4.95
    Was: $14.95
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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 - MI Blast Can 5/8-24 Thread - HKP-21536 HK91, G3 Blast Can - Threaded 5/8x24
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    HK91, G3 Blast Can - Threaded 5/8x24

    MI Midwest Industries

    $38.95
    MI Blast Can 5/8x24 Thread Specifications: Directs muzzle blast forward on short barrel rifles and pistols. Does not reduce recoil or flash. Constructed from 6061 aluminum, and hardcoat anodized for a lifetime of service 5/8x24 Thread for .30...
    HKP-21536
    $38.95
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  • New - H&K / HKP V51 Fixed Stock - HKP-21270-M Vector Arms V51 Fixed Stock
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    Vector Arms V51 Fixed Stock

    HKP HK Parts

    $279.95
    H&K / HKP V51 Fixed Stock HK Parts A2 style stocks for the Vector V51 platform. We start with a like-new backplate and convert it into a V51 collapsible style and pair it with a like-new, hand-picked stock.  The result, a complete A2 stock that...
    HKP-21270-M
    $279.95
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  • Out Of Stock
    New - HKP PTR PDW (7.62x51/.308) Complete Bolt Group - HKP-17389 HK PTR PDW Bolt Group - Complete

    HK PTR PDW Bolt Group - Complete

    HKP HK Parts

    $379.95
    US Made PTR Bolt Group Complete Semi-Auto 308. Factory correct bolt head and locking piece for use in the PTR PDW chambered in 7.62X51 or 308. Brand new May 2015 manufacture. This is the correct bolt for all PTR PDW with 8" barrels.
    HKP-17389
    $379.95
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  • New - HKP HK 91/G3 (7.62x51/.308) Ambidextrous Trigger Pack (0,1) - HKP-17232 HK91, G3 Trigger Pack - Ambi 0,1
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    HK91, G3 Trigger Pack - Ambi 0,1

    HKP HK Parts

    $362.95
    HK Parts and Heckler and Koch 2 Position 0,1 Ambidextrous Trigger Pack for HK91, and HK G3 Finally, a lower cost alternative to the expensive and rare all-German FBI and 0,1 ambi trigger packs.  Each trigger pack comes 100% complete, ready to use...
    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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  • New - HK 91/G3 (7.62x51/.308) Bolt Head - Stripped - HKP-16636 HK91, G3 Bolt Head - Stripped
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    HK91, G3 Bolt Head - Stripped

    $96.95
    New US Made Bolt Head- Incomplete: CNC machined from HK blueprints to precise tolerances that use the proper steel and heat-treat processes. You WILL NOT find a better quality offering of HK Parts anywhere. All of the bolt heads we offer on our website...
    HKP-16636
    $96.95
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