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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  • On Sale
    HK Trigger Pack Ejector Lever Axle - USED HK Trigger Pack Ejector Lever Axle - USED
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    HK Trigger Pack Ejector Lever Axle - USED

    H&K Heckler & Koch

    Now: $12.95
    Was: $19.95
    HK Trigger Pack Ejector Lever Axle - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German ejector lever axle pin for all HK trigger packs. This is the factory correct axle pin that holds the...
    HKP-01091-USED
    Now: $12.95
    Was: $19.95
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  • HK91, G3 Magazine - 15 Round - Alloy HK91, G3 Magazine - 15 Round - Alloy
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    HK91, G3 Magazine - 15 Round - Alloy

    H&K Heckler & Koch

    $44.95
    Heckler and Koch HK91, G3, MSG90 15-Round Alloy Magazine Manufactured by Heckler & Koch and converted to 15-round capacity in the United States using a U.S.-made floorplate. Counts as one U.S.-made part for 922r compliance. Compatible With: HK91,...
    HKP-22427
    $44.95
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  • Out Of Stock
    On Sale
    New - HKP HK MP5 Picatinny Rail Optic Mount - Raised - BLEMISHED - HKP-21489-B HK MP5 Optic Mount - Raised - Picatinny - BLEMISHED

    HK MP5 Optic Mount - Raised - Picatinny - BLEMISHED

    HKP HK Parts

    Now: $68.95
    Was: $109.95
    HKP HK MP5 Picatinny Rail Optic Mount - Raised Mount - BLEMISHED DINGS - INSTALLATION MARKINGS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK Parts Picatinny...
    HKP-21489-B
    Now: $68.95
    Was: $109.95
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    Was: $109.95
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  • New - RCM HK51K (7.62x51/.308) Barrel - Threaded 15x1 RH - HKP-02392 HK51K Barrel - 7.62 / .308 - 5.3" - Threaded 15x1 RH
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    HK51K Barrel - 7.62 / .308 - 5.3" - Threaded 15x1 RH

    RCM

    $164.95
    RCM HK51K (7.62x51/.308) Barrel - Threaded 15x1 RH Made to exact HK51K specifications from cold hammer forged steel, this barrel matches the quality of HK German barrels. Ideal for custom builds and HK51K style projects. Specifications: Made In The...
    HKP-02392
    $164.95
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    $164.95
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  • On Sale
    HK91, G3, MSG90 Magazine - 5 Round - Black - BLEMISHED HKP HK Parts HKP-16250-BL-B HK91, G3, MSG90 Magazine - 5 Round - Black - BLEMISHED HKP HK Parts HKP-16250-BL-B
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    HK MP5, HK91, G3, PTR Magazine - 5 Round - Black - BLEMISHED

    HKP HK Parts

    Now: $44.97
    Was: $79.95
    HK91, G3, MSG90 Magazine - 5 Round - Black - BLEMISHED PITTING COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. 5 Round German Steel 308 Magazine With US Made...
    HKP-16250-BL-B
    Now: $44.97
    Was: $79.95
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  • New - H&K A3 Parkerized Stock Protective Cover - HKP-20649 HK A3 Buttstock Protective Cover - Parkerized
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    HK A3 Buttstock Protective Cover - Parkerized

    H&K Heckler & Koch

    $19.95
    H&K A3 Parkerized Stock Protective Cover The perfect replacement part for all HK G3, HK33, and MP5 collapsible stocks issued with steel covers. Complete with locking spring clips welded in place. 
    HKP-20649
    $19.95
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  • New - HKP Single Point Leather Sling - OD Green - HKP-20163 HK Single Point Leather Sling - OD Green
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    HK Single Point Leather Sling - OD Green

    HKP HK Parts

    $49.95
    Single Point Leather Sling - OD Green Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German...
    HKP-20163
    $49.95
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  • Out Of Stock
    New - Kinetic Development Group Sidelok Modular Optic Mount - 30mm - HKP-19062 Sidelok Optic Mount - 30mm - Modular

    Sidelok Optic Mount - 30mm - Modular

    KDG Kinetic Development Group

    $224.95
    Kinetic Development Group Sidelok Modular Optic Mount - 30mm The new KDG Modular Optic Mount is based off the proven Sidelok family of quick detach optic mounts and features the same user-friendly, tool-free design. KDG set out to design a Sidelok mount...
    HKP-19062
    $224.95
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    $224.95
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  • On Sale
    New - H&K 4 Position Burst To 0,1 Only - Conversion Selector Lever Set - HKP-17996 HK MP5 Selector Lever Conversion Set - 4 Position Burst To 0,1
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    HK MP5 Selector Lever Conversion Set - 4 Position Burst To 0,1

    H&K Heckler & Koch

    Now: $129.95
    Was: $179.95
    HK 4 Position Burst To Semi ONLY Conversion Selector Lever Set - German HK The German HK selector lever set will allow the use to convert the following: 0,1,3,F Trigger packs 0,1,2,F Trigger packs To safe, semi only as far as the way the selector...
    HKP-17996
    Now: $129.95
    Was: $179.95
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  • Used - HK G3 Incomplete Backplate - Painted - HKP-21541 HK G3 Incomplete Backplate - Painted
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    HK G3 Incomplete Backplate - Painted

    H&K Heckler & Koch

    $29.95
    HK G3 Incomplete Backplate -  Factory German G3 refinished backplate. A great replacement or spare to have around to replace your broken or worn out backplates.  Please note you will need two rivets, nylon ring, recoil spring in order to...
    HKP-21541
    $29.95
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  • New - Blitzkrieg PTR Flat Tip Front Sight Gen 2 - Orange - HKP-21103 PTR Flat Tip Front Sight - Gen 2 - Orange
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    PTR Flat Tip Front Sight - Gen 2 - Orange

    Blitzkrieg Components

    $84.95
    Blitzkrieg PTR Flat Tip Front Sight Gen 2 - Orange The Blitzkrieg Gen 2 HK-style front sight delivers a fast and precise aiming point with its conventional flat-tipped post and bright orange stripe. Designed for easy installation, it utilizes a roll pin...
    HKP-21103
    $84.95
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  • Used - H&K German Leather Sling - Well Used with No Loop - HKP-20583 HK G3 Leather Sling - Well Used with No Loop
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    HK G3 Leather Sling - Well Used with No Loop

    H&K Heckler & Koch

    $39.80
    Original Surplus German HK Leather - Well Used with No Loop Pulled from German military G3 rifles. Last of the remaining units, get them before they are gone. Compatible With: HK91, G3 PTR91, CETMEHK93 HK33, HK53 HK94 MP5 HK clones Other custom...
    HKP-20583
    $39.80
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    $39.80
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