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 - HK 91/G3 (7.62x51/.308) Bolt Head Complete - US Made - HKP-00839 HK91, G3 Bolt Head Complete - US Made
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    HK91, G3 Bolt Head Complete - US Made

    $149.95
    Bolt Head - Complete This item is a complete bolt head using a combination of new HK German and New US-made parts. This part counts as 1 US-made compliant part for the 922r compliance. Compatible With: HK 91 HK G3 PTR-91 SAR3/8 Other HK .308 Clones or...
    HKP-00839
    $149.95
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  • Out Of Stock
    HK MP5 Barrel Retaining Pin - 5.015mm H&K Heckler & Koch HKP-22284 HK MP5 Barrel Retaining Pin - 5.015mm H&K Heckler & Koch HKP-22284

    HK MP5 Barrel Retaining Pin - 5.015mm

    H&K Heckler & Koch

    $14.95
    H&K 90 Series Barrel Retaining Pin - 5.015mm Each barrel pin is used for installing a new or replacement barrel. HK suggests using a new factory barrel pin when installing or reinstalling an HK barrel.  Compatible With:  HK MP5, SP5, MP5K,...
    HKP-22284
    $14.95
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    $14.95
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  • Used - H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - Used Excellent - HKP-19042 HK91, G3 Handguard - Slimline Style - Jungle Green - Used Excellent
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    HK91, G3 Handguard - Slimline Style - Jungle Green - Used Excellent

    H&K Heckler & Koch

    $29.95
    H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - Used Excellent Used in excellent shape. These are a nice addition to the collection. Compatible With: All full forearm length HK 91, G3, PTR style firearms
    HKP-19042
    $29.95
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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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  • New - POF HK G3, 91, PTR SlimLine Hand Guard - HKP-19560 HK G3, HK91, PTR Handguard - Slimline Style
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    HK G3, HK91, PTR Handguard - Slimline Style

    POF

    $19.95
    POF Slimline HK91, G3, PTR Forearm - POF New POF HK-contract slimline standard-length handguard full size HK G3, 91, PTR rifles.  Does not feature internal heat shield. Compatible With: HK91 HK G3 PTR-91 CETME (modification may be needed) Other HK ...
    HKP-19560
    $19.95
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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
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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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  • HK91, G3 Barrel - FMP - 17.7" - Threaded 15x1 HK91, G3 Barrel - FMP - 17.7" - Threaded 15x1
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    HK91, G3 Barrel - FMP - 17.7" - Threaded 15x1

    FMP HK CONTRACT

    $89.95
    HK G3, 91 Barrel - 7.62/.308 - 17.7" - Threaded 15x1 Original 17.7" FMP G3 barrel threaded 15x1 RH. Portuguese manufactured to HK's military specifications. These surplus barrels are perfect for building a FMP G3 parts kit or as a replacement. Barrels...
    HKP-22532
    $89.95
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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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  • 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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  • On Sale
    New - Timney Triggers HK MP5, HK 91/93/94, HK G3 2-Stage Trigger - HKP-20500 HK MP5, HK91, G3, HK93, HK94 2-Stage Trigger
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    HK MP5, HK91, G3, HK93, HK94 2-Stage Trigger

    Timney Triggers

    Now: $249.95
    Was: $298.95
    Timney Trigger for MP-5, HK 91/93/94, G3, Clones The Timney HK MP5 trigger is factory-set with a two pound first stage and a two pound second stage pull weight. All trigger parts have been expertly designed and precision machined from premium materials...
    HKP-20500
    Now: $249.95
    Was: $298.95
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    Now: $249.95
    Was: $298.95
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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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    $4.95
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