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 Firing Pin - Titanium HK91, G3 Firing Pin - Titanium

    HK91, G3 Firing Pin - Titanium

    HKP HK Parts

    $34.95
    HK G3, 91 & PTR Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made 100% in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK G3, 91 & PTR weapon system. Get the...
    HKP-17937
    $34.95
    Qty in Cart: 0
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    $34.95
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  • Used - H&K (7.62/.308) & (5.56/.223) Flash Hider - 15x1 - Used - HKP-00717 H&K (7.62/.308) & (5.56/.223) Flash Hider - 15x1 - Used H&K Heckler & Koch HKP-00717

    HK33, HK53, HK93, HK91, HK G3 Flash Hider - Threaded 15x1 - Used

    H&K Heckler & Koch

    $15.95
    Heckler and Koch's Flash Hider - 15x1 RH - Used Used / surplus HK German flash hider threaded 15x1 RH.  Please inspect pictures to ascertain the average condition of these flash hiders. Compatible With: HK33, HK53, HK93 HK91, G3
    HKP-00717
    $15.95
    Qty in Cart: 0
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    $15.95
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  • New - SchleTek Carbon Cleaner 150 ml Pump - HKP-21729

    Carbon-Cleaner - 150 ml Pump

    SchleTek

    $16.95
    SchleTek Carbon Cleaner 150 ml Pump SchleTek Carbon Cleaner is a powerful, fast-acting solution designed to remove stubborn carbon buildup from firearms, suppressors, bolts, gas systems, and other precision components. Its advanced formula penetrates...
    HKP-21729
    $16.95
    Qty in Cart: 0
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    $16.95
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  • New - H&K 91/G3 (7.62x51/.308) Magazine Unloader - HKP-01508

    HK91, G3 Magazine Unloader

    H&K Heckler & Koch

    $49.95
    HK Factory German Unloader For HK 91, G3, And PTR Magazines Brand new HK German manufactured magazine loader for the alloy or steel mags. Made from all steel construction. Compatible With: HK 91 magazines HK G3 magazines PTR, CETME HK PSG-1 magazines HK...
    HKP-01508
    $49.95
    Qty in Cart: 0
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    $49.95
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  • HK51K Parts Kit - .308 HK51K Parts Kit - .308

    HK51K Parts Kit - .308

    HKP HK Parts

    $2,099.95
    HK51K Parts Kit - 7.62 / .308 Previously only achievable by a handful of specialized builders, HK Parts brings the rare 51K to life through our comprehensive parts kit. Our 51K parts kit features a combination of hand-picked German and quality U.S...
    HKP-22876
    $2,099.95
    Qty in Cart: 0
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    $2,099.95
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  • HK MP5, AP5 Magazine Catch Push Button

    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
    Qty in Cart: 0
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    $6.95
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  • HK91, G3 Magazine - 15 Round - Alloy HK91, G3 Magazine - 15 Round - Alloy

    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
    Qty in Cart: 0
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  • HK G3, HK33, HK93 Bayonet w/Scabbard - NOS H&K Heckler & Koch HKP-22366 HK G3, HK33, HK93 Bayonet w/Scabbard - NOS H&K Heckler & Koch HKP-22366

    HK G3, HK33, HK93 Bayonet with Scabbard - NOS

    H&K Heckler & Koch

    $227.95
    HK G3, HK33, HK93 Bayonet with Scabbard - New Old Stock Genuine German HK military surplus bayonet in original wrap. These are the 12-groove version of the popular military bayonet.  Scabbard is included. Compatible With: HK G3 HK91 HK33 HK93
    HKP-22366
    $227.95
    Qty in Cart: 0
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  • New - H&K 91/G3 (7.62x51/.308) Sniper Trigger Group - Match Trigger - HKP-17031 HK91, G3 Match Trigger Group - Sniper

    HK91, G3 Match Trigger Group - Sniper

    H&K Heckler & Koch

    $749.95
    HK German SEMI .308 Trigger Group Complete For G3, 91 & PTR Models The HKP match trigger group starts life as a standard 12lb stock trigger pack before being carefully converted by the legendary trigger gunsmith, Bill Springfield.  The result, a...
    HKP-17031
    $749.95
    Qty in Cart: 0
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    $749.95
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  • New - PTR-32 (7.62x39) Locking Piece - 65 degree - HKP-18520 PTR-32 Locking Piece - 65 degree

    PTR-32 Locking Piece - 65 degree

    PTR

    $67.95
    PTR-32 (7.62x39) Locking Piece - 65 degree New PTR Locking Piece For PTR-32. Marked "32" for the PTR-32 series of rifles and pistols. This is a 65 degree locking piece. New PTR manufacture. This locking piece will also work for custom HK builds as well.
    HKP-18520
    $67.95
    Qty in Cart: 0
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    $67.95
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  • HK 91/G3 Trigger Group with AC-Unity Grip Conversion Kit HKP HK Parts HKP-22322 HK 91/G3 Trigger Group with AC-Unity Grip Conversion Kit HKP HK Parts HKP-22322

    HK91, G3 Metal Trigger Housing Conversion Kit - AC Unity Grip

    HKP HK Parts

    $189.95
    HK91, G3 Metal Trigger Housing Conversion Kit - AC Unity Grip This kit includes everything you need to convert a polymer HK91 or G3 trigger group a robust metal housing. Simply use your existing semi-auto SEF trigger pack to complete the conversion. This...
    HKP-22322
    $189.95
    Qty in Cart: 0
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  • On Sale
    New - HK MP5 8" Cocking Tube Extrusion - Gunsmith Special - HKP-99061

    HK MP5 Cocking Tube - Extrusion - 8" - Gunsmith Special

    USA

    Now: $14.96
    Was: $54.95
    HK MP5 8" Cocking Tube Extrusion - Gunsmith Special  This 8" 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...
    HKP-99061
    Now: $14.96
    Was: $54.95
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    Now: $14.96
    Was: $54.95
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