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
    Used - H&K HK G3, 91, PTR Bolt Head Complete - Used - HKP-21902 HK91, G3, PTR Bolt Head Complete - Used
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    HK91, G3, PTR Bolt Head Complete - Used

    H&K Heckler & Koch

    Now: $78.95
    Was: $99.95
    German HK G3 & HK 91 & PTR Bolt Head Complete - Used German Date Coded Made in Germany. Each used bolt head is complete with all parts installed & 100% functional. Taken from live demilled German HK G3 rifles. Each bolt head is in good shape...
    HKP-21902
    Now: $78.95
    Was: $99.95
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    Now: $78.95
    Was: $99.95
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  • Used - H&K HK91/G3 PTR Parkerized Backplate & Recoil Rod Assembly - Threaded - HKP-21647 HK91, G3 PTR ,Recoil Rod Assembly, Backplate - Painted
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    HK91, G3 PTR ,Recoil Rod Assembly, Backplate - Painted

    H&K Heckler & Koch

    $54.95
    H&K HK91/G3 PTR & Recoil Rod Assembly-Backplate-Painted Our German HK backplate has been expertly refinished and Painted for exceptional durability. This backplate features an innovative guide screw that allows you to effortlessly replace worn...
    HKP-21647
    $54.95
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  • On Sale
    HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED
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    HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED

    H&K Heckler & Koch

    Now: $2.96
    Was: $5.95
    HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED   VARYING CONDITION SHOWN - SOLD INDIVIDUALLY   USED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN.  Features: Precision-machined elbow spring...
    HKP-03330-USED
    Now: $2.96
    Was: $5.95
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    Now: $2.96
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  • Out Of Stock
    New - PTR 32 (7.62x39) Complete Bolt Head - US Made - HKP-02280 PTR 32 Complete Bolt Head - 7.62x39 - US Made

    PTR 32 Complete Bolt Head - 7.62x39 - US Made

    $199.95
    PTR 32 (7.62x39) Complete Bolt Head - US Made This item is a complete bolt head using a combination of new HK German and new US-made Parts. Bolt Head counts as one US-made compliance part for the 922r compliance. Compatible With: All HK PTR-32 7.62 X...
    HKP-02280
    $199.95
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    $199.95
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  • Used - H&K 91/G3 (7.62x51/.308) Fixed Stock with Enhanced Heavy Buffer - Jungle Green - Surplus - HKP-18935 HK91, G3 Fixed Stock with Enhanced Heavy Buffer - Jungle Green - Surplus
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    HK91, G3 Fixed Stock with Enhanced Heavy Buffer - Jungle Green - Surplus

    H&K Heckler & Koch

    $129.95
    HK 91, G3 Fixed Stock with Enhanced Heavy Buffer Installed- Jungle Green - Surplus Used jungle green German surplus stock complete with Enhanced Heavy Buffer Installed. Ready to drop in on your HK or clone rifle. Used in perfect working condition. Each...
    HKP-18935
    $129.95
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  • New - H&K Extended Selector Lever - Burst 3 Position - HKP-16973 HK Extended Selector Lever - Burst 3 Position
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    HK Extended Selector Lever - Burst 3 Position

    H&K Heckler & Koch

    $94.95
    H&K Extended Selector Lever - Burst 3 Position New HK ambidextrous left side EXTENDED (ESSL) 0,1,2 or 0,1,3 only burst selector lever for ambidextrous trigger packs or trigger groups. Will not fit SEF style trigger packs.
    HKP-16973
    $94.95
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  • Used - H&K G3 Complete Parkerized Rear Receiver Section w/ Rear Sight - SURPLUS - HKP-22164 HK G3 Rear Receiver Section with Rear Sight - Complete - Parkerized - SURPLUS
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    HK G3 Rear Receiver Section with Rear Sight - Complete - Parkerized - SURPLUS

    H&K Heckler & Koch

    $54.95
    H&K G3 Complete Parkerized Rear Receiver Section w/ Rear Sight - SURPLUS UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Genuine H&K parkerized steel rear receiver section with fully installed G3 rear sight assembly, two stock...
    HKP-22164
    $54.95
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  • New - H&K 2 Round Count Burst Wheel for 4 Position Trigger Packs - HKP-02488
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    HK 2 Round Count Burst Wheel for 4 Position Trigger Packs

    H&K Heckler & Koch

    $119.95
    H&K 2 Round Count Burst Wheel for 4 Position Trigger Packs This wheel can be used to convert a 0,1,3, F to a 2-round burst rather than a 3-round burst option.
    HKP-02488
    $119.95
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  • Out Of Stock
    New - H&K Universal Harris Bipod Adapter - RAL 8000 - HKP-17750 HK Universal Harris Bipod Adapter - RAL8000

    HK Universal Harris Bipod Adapter - RAL8000

    H&K Heckler & Koch

    $199.95
    HK Factory Harris Bipod Adapter - Low Profile - RAL 8000 This adapter is used to attach the Harris bipod to any Picatinny rail. Fits all picatinny railed forearms or applications. Features the lowest profile of any bipod adapter we have encountered with...
    HKP-17750
    $199.95
    Out Of Stock
    Qty in Cart: 0
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    $199.95
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  • New - H&K Scope Mount Ring Set - 1 Inch For 30mm Scope - HKP-02474 HK Optic Mount Ring Set - 1 Inch for 30mm Scope
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    HK Optic Mount Ring Set - 1 Inch for 30mm Scope

    H&K Heckler & Koch

    $89.95
    H&K Scope Mount Ring Set - 1 Inch For 30mm Scope Each set includes one complete set of inserts for one complete setup (4 individual sides). This is a Genuine HK German part. Insert rings (1 inch) - HK 30mm claw mount not included.
    HKP-02474
    $89.95
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    $89.95
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  • New - PTR-32 (7.62x39) Locking Piece - 70 degree - HKP-18519 PTR-32 (7.62x39) Locking Piece - 70 degree
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    PTR-32 (7.62x39) Locking Piece - 70 degree

    PTR

    $63.95
    PTR-32 (7.62x39) Locking Piece - 70 degree New PTR Locking Piece For PTR-32. Marked "70" for the PTR-32 series of rifles and pistols. This is a 70 degree locking piece. New PTR manufacture. This locking peice will also work for custom HK builds as well.
    HKP-18519
    $63.95
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    $63.95
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  • New - PTR HK 91/G3 (7.62x51/.308) Tactical Forearm - Low Profile - HKP-21806 HK91, G3 Tactical Handguard - Low Profile
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    HK91, G3 Tactical Handguard - Low Profile

    PTR

    $109.95
    PTR HK 91/G3 (7.62x51/.308) Tactical Forearm - Low Profile Made from aircraft-grade aluminum, rock-solid, and lightweight. This forearm allows you to add up to 3 rails on your firearm. That includes the left, right, as well as bottom sides, with the...
    HKP-21806-M
    $109.95
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    $109.95
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