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 - HKP Torx Binary Upgrade Screw Set - HKP-21816
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    HK Torx Screw Set for Binary Selector Lever - Upgrade

    HKP HK Parts

    $2.95
    HKP Torx Binary Upgrade Screw Set Upgrade your binary selector levers with our Torx hardware set.  Torx hardware is less likely to strip than standard allen key hardware.  Good spares to have on hand as well. Note: Each set comes with 2 screws.
    HKP-21816
    $2.95
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  • On Sale
    New - MKE HK MP5 Elbow Spring for Trigger - HKP-22225 MKE HK MP5 Elbow Spring for Trigger MKE HKP-22225
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    HK MP5, HK90 Series Trigger Spring - SEF, Navy

    MKE

    Now: $2.45
    Was: $8.95
    MKE SEF & Navy 3 Position Trigger Spring The MKE trigger spring is an essential upgrade for anyone dealing with worn or broken trigger return springs in surplus trigger packs or as spares for all 90 series owners. These springs are fully compatible...
    HKP-22225
    Now: $2.45
    Was: $8.95
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  • Out Of Stock
    Used - SureFire SOCOM (7.62x51/.308) Muzzle Brake - Threaded 5/8x24 - HKP-19789 HK G3, HK417 Muzzle Brake - SOCOM - Threaded 5/8x24

    HK G3, HK417 Muzzle Brake - SOCOM - Threaded 5/8x24

    Surefire

    $164.95
    SureFire SOCOM (7.62x51/.308) Muzzle Brake - Threaded 5/8x24 The SureFire muzzle brake is designed for Armalite AR-10, DPMS LR308, and other 7.62 mm rifles with 5/8x24 muzzle threads. It greatly reduces recoil impulse and muzzle rise, featuring neutral...
    HKP-19789
    $164.95
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    $164.95
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  • Out Of Stock
    HK91, G3, PTR Magazine - 20 Round - Aluminum - Like New - FMP HK91, G3, PTR Magazine - 20 Round - Aluminum - Like New - FMP

    HK91, G3, PTR Magazine - 20 Round - Aluminum - Like New - FMP

    FMP HK CONTRACT

    $17.95
    FMP Portuguese HK91, G3, PTR 20 Round Aluminum Magazine - Like New Portuguese FMP 20-round aluminum magazine for HK91, G3, and PTR pattern rifles. A solid factory-style magazine option for range use, replacement needs, or adding extra mags to your setup...
    HKP-22558
    $17.95
    Out Of Stock
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    $17.95
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  • New - JMAC Universal M-LOK Skeleton Forward Grip - HKP-21240 M-LOK Foregrip - Skeleton
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    M-LOK Foregrip - Skeleton

    JMAC Customs

    $89.95
    JMAC Universal M-LOK Skeleton Forward Grip  Can be used as a forward grip or a handstop! Features: Reversible and Lightweight M-LOK Compatible (Requires 2 slots) Fits in and across M-LOK Slots Includes mounting hardware 7075 T6 Aluminum Hard Coat...
    HKP-21240
    $89.95
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  • Out Of Stock
    New - PTR HK G3/91 (7.62x51/.308) Match Barrel - Threaded 5/8x24 - HKP-19633 HK91, G3 Barrel - 7.62 / .308 - 18" - Threaded 5/8x24 - Match

    HK91, G3 Barrel - 7.62 / .308 - 18" - Threaded 5/8x24 - Match

    PTR

    $229.95
    PTR HK G3/91 (7.62x51/.308) Match Barrel - Threaded 5/8x24 This new PTR-91 US-manufactured 18" heavy profile match grade barrel is perfect for new builds and counts as one US-made compliant part. It features the proper fluted chambers for HK G3/91 rifles...
    HKP-19633
    $229.95
    Out Of Stock
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    $229.95
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  • Used - H&K G3 Parts Kit - RCM Barrel - HKP-16577 HK91, G3 Parts Kit - RCM Barrel
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    HK91, G3 Parts Kit - RCM Barrel

    H&K Heckler & Koch

    $518.95
    HK German G3 .308/7.62 X 51mm Surplus Parts Kit Finally, after more than 4 years of searching the globe, we have HK German Surplus G3 parts kits available to offer. Each parts kit comes complete with all parts from a functional HK G3 full auto rifle that...
    HKP-16577
    $518.95
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    $518.95
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  • New - HKP Tactical Rail - 2" - HK91/93 - HKP-02527 HK91, HK93 Rail - Tactical - 2"
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    HK91, HK93 Rail - Tactical - 2"

    HKP HK Parts

    $16.95
    HKP HK Parts 2" Tactical Rail  for HK91, PTR 91, and the HK93 (with tactical grip) The six mounting screws are also included with each rail. This rail will fit on either the left or right side or the bottom of the PTR and HK91/93 tactical handguards...
    HKP-02527
    $16.95
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  • On Sale
    New - MKE HK 93/53/33 Push Pin Spring - HKP-22228 MKE Push Pin Spring MKE HKP-22228
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    HK33, HK53, HK93 Push Pin Spring

    MKE

    Now: $2.19
    Was: $3.95
    MKE HK33, HK53, HK33 Push Pin Spring A must have replacement spring to have on hand. A quick and easy install spring to get your push pins back to working condition. A great replacement for those worn out springs that come loose while in action...
    HKP-22228
    Now: $2.19
    Was: $3.95
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  • Out Of Stock
    New - H&K Screwdriver for Adjustable Rear Sight - HKP-21981 HK Screwdriver for Adjustable Rear Sight

    HK Screwdriver for Adjustable Rear Sight

    H&K Heckler & Koch

    $9.95
    Screwdriver for Adjustable Rear Sight Precision screwdriver designed for adjusting rear sights. Ideal for fine-tuning windage and elevation.    
    HKP-21981
    $9.95
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  • New - H&K Cocking Tube End Cap Detent - HKP-18050
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    HK MP5, HK91, G3, HK33 Cocking Tube Detent End Cap

    H&K Heckler & Koch

    $4.95
    HK German Cocking Tube End Cap/Dust Cap Detent HK German cocking tube detent for all steel and aluminum cocking tube end caps. Made of steel and finished in black.
    HKP-18050
    $4.95
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  • On Sale
    New - MFI Picatinny Rail Riser For Scope - HKP-00899 HK MP5 SP5K, SP89, G3, HK91, HK33, HK53, HK93 Rail Riser - Picatinny
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    HK MP5 SP5K, SP89, G3, HK91, HK33, HK53, HK93 Rail Riser - Picatinny

    MFI

    Now: $29.95
    Was: $44.95
    MFI Picatinny Rail Riser For Scope MFI Picatinny rail riser to elevate your optic by 18.8mm (.740"). This see-through riser allows a full view through the factory iron sights. This unit is similar to the A.R.M.S. #5 base scope mount and STANAG to...
    HKP-00899
    Now: $29.95
    Was: $44.95
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