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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  • New - MKE 90 Series Sear & Trigger Axle - HKP-22233 MKE 90 Series Sear & Trigger Axle MKE HKP-22233
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    HK90 Series Trigger and Catch Axle - USA

    MKE

    $1.99
    HK Sear and Trigger Axle For 90 Series - SURPLUS MKE sear and trigger axle for the 90 series style trigger packs. Each axle pin (aka pivot pin) measures .197 inches (5.0mm). Each HK trigger pack uses a total of 2 of these axle pins per trigger pack...
    HKP-22233
    $1.99
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  • New - FMP HK G3 Manual - HKP-21542 FMP HK G3 Manual
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    FMP HK G3 Manual

    $149.95
    FMP HK G3 Manual English-translated manuals for the Factory FMP G3 are available now. This is a rare collector's piece and the perfect item for those aiming to assemble a complete FMP G3 parts kit with an authentic factory manual. The cover is inscribed...
    HKP-21542
    $149.95
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  • Out Of Stock
    New - KNS Precision HK Push Button Take Down Pin - Large - HKP-21388 HK MP5, HK33, HK91 Take Down Pin - Push Button - Large

    HK MP5, HK33, HK91 Take Down Pin - Push Button - Large

    KNS Precision

    $24.99
    KNS Precision HK Push Button Take Down Pin - Large .275" This 7mm (.275") diameter take-down pin has a spring-loaded push button. When the button is depressed, the stainless steel keeper detents retract for easy pin removal. The pin is designed to...
    HKP-21388
    $24.99
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    $24.99
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  • New - H&K 91/G3 (7.62x51/.308) 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin - HKP-17823 HK91, G3 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin
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    HK91, G3 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin

    H&K Heckler & Koch

    $459.95
    H&K 91/G3 (7.62x51/.308) 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin This authentic German HK trigger housing features a 4 position pictogram (0,1,3,F) and is designed for push pin style G3 or Zenith firearms. It is configured for use...
    HKP-17823
    $459.95
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  • New - H&K 91/G3/MSG90 (7.62x51/.308) 5 Round Magazine - Steel - HKP-00220 HK91, G3, PTR Magazine - 5 Round - Steel
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    HK91, G3, PTR Magazine - 5 Round - Steel

    H&K Heckler & Koch

    $174.95
    New HK German 5 Round Factory G3 and HK91 .308 Steel Magazine Factory German steel magazine.  This is an original German 5 round magazine from HK, not a modified assembly/cut-down magazine.  These mags are long out of production and only a...
    HKP-00220
    $174.95
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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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