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 - H&K (5.56/.223) & (7.62x51/.308) Hammer Spring- Extra Power - HKP-16447
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    Trigger Pack Hammer Spring - Extra Power - 5.56 / .223 - 7.62x51 / .308

    H&K Heckler & Koch

    $14.95
    H&K (5.56/.223) & (7.62x51/.308) Hammer Spring- Extra Power New HK German extra power hammer spring for all .308/.223 Semi & Full Auto Trigger Packs. This is a must have spare replacement part for your HK firearm parts bin. The heavy hammer...
    HKP-16447
    $14.95
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    $14.95
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  • Used - HKP HK 91/G3/PTR Armorer's Manual - HKP-02635 HK91, G3, PTR Armorer's Manual
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    HK91, G3, PTR Armorer's Manual

    HKP HK Parts

    $19.95
    HK 91, G3, & PTR Armorer's Manual This manual is the best manual available for the HK .308 G3, 91, or PTR family of firearms. See the photos for the table of contents.
    HKP-02635
    $19.95
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  • New - H&K 91/93/33/53/G3 (5.56/.223) & (7.62x51/.308) Rear Stock Buffer With All Mounting Hardware - HKP-00362 HK33, HK53, HK93, HK91, G3 Complete Buttstock Buffer Assembly
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    HK33, HK53, HK93, HK91, G3 Complete Buttstock Buffer Assembly

    H&K Heckler & Koch

    $24.95
    HK33, HK53, HK93, HK91, G3 Complete Stock Buffer Assembly - All Mounting Hardware Each unit comes with all of the mounting hardware for installing the G3 buffer to your backplate assembly. Also fits the HK93, 33, and 53 fixed stocks as well (use the same...
    HKP-00362
    $24.95
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    $24.95
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  • Used - H&K Sling Loop For Front Sight Tower - Used - HKP-17058 HK90 Series Front Sight Sling Loop - Used
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    HK90 Series Front Sight Sling Loop - Used

    H&K Heckler & Koch

    $24.95
    HK German sling loop, eyebolt or triple frame retainer pin for front sight tower - Used This HK OEM item is used and pulled from demilled HK firearms. This is a must have item for all of your re-barrel jobs of for when you need to mount a sling loop to...
    HKP-17058
    $24.95
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  • New - AntiVenom-XPLC Lubricant and Cleaner - HKP-18410 AntiVenom-XPLC Lubricant and Cleaner Strike Industries HKP-18410
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    Ultra Gun Oil - AntiVenom XPLC - Lubricant and Cleaner

    Strike Industries

    $14.95
    AntiVenom-XPLC Lubricant and Cleaner Strike Industries introduces the industry's most extreme general-purpose weapons lubrication, cleaning, and protection solution. Strike Industries AntiVenom-XPLC is the culmination of years of research and...
    HKP-18410
    $14.95
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  • New - H&K HK G3, HK 91, PTR Locking Lever - HKP-19485 HK91, G3, PTR Bolt Carrier Locking Lever
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    HK91, G3, PTR Bolt Carrier Locking Lever

    H&K Heckler & Koch

    $9.95
    Locking Lever - HK German G3 - New Old stock No longer made or offered by HK. This is the factory HK German manufactured bolt carrier locking lever. New never installed. These are the LAST new units that HK made. There will be no more once we are sold...
    HKP-19485
    $9.95
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  • Used - H&K G3/91 (7.62x51/.308) SEF Navy Style Trigger Housing - Clipped & Pinned - USED EXELLENT - HKP-01824 HK91, G3 SEF Navy Style Trigger Housing - Clipped & Pinned - USED EXELLENT
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    HK91, G3 SEF Navy Style Trigger Housing - Clipped & Pinned - USED EXELLENT

    H&K Heckler & Koch

    $99.95
    H&K G3/91 (7.62x51/.308) SEF Navy Style Trigger Housing - Clipped & Pinned - USED EXELLENT German-made Heckler & Koch grip housing comes in black polymer clipped & pinned, ready to drop on your HK 91, HKG3, PTR-91, or other HK .308 type...
    HKP-01824
    $99.95
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    $99.95
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  • Used - H&K Trigger Pack Sear/Catch - Surplus - HKP-18304
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    HK MP5K, HK90 Series Sear Complete - Steel - Used Surplus

    H&K Heckler & Koch

    $12.95
    Heckler & Koch's Sear Catch Release - Complete for HKP 90, MP5K Trigger Packs - German - Used - Steel German HK Sear/Catch complete with installed detent, spring and roll pin. Used surplus in VG-EXC shape and in perfect working order and complete...
    HKP-18304
    $12.95
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  • New - H&K 91/G3 (7.62x51/.308) Cocking Handle Support - HKP-01442 HK91, G3 Cocking Handle Support
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    HK91, G3 Cocking Handle Support

    H&K Heckler & Koch

    $24.95
    New HK German 91, G3, & PTR Cocking Handle Support A genuine German Heckler & Koch all-steel part. Compatible With: HK91 HK G3 PTR-91 PTR-32 HK .308 Custom builds & clones
    HKP-01442
    $24.95
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  • New - HKP Roller +1 - New - 8.01mm - HKP-19424 HKP Roller +1 - New - 8.01mm
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    HKP Roller +1 - New - 8.01mm

    H&K Heckler & Koch

    $8.99
    Roller +1 - New - 8.01mm HK Parts Standard (8.01 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...
    HKP-19424
    $8.99
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    $8.99
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  • New - AC-Unity HK PSG1 Style Sniper Pistol Grip - HKP-21628 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 HK 91/G3/PSG1/HK11 50 Round Drum Magazine - HKP-21615 HK91, G3, PSG1, HK11 Drum Magazine - 50 Round
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    HK91, G3, PSG1, HK11 Drum Magazine - 50 Round

    HKP HK Parts

    $359.95
    HKP 50 Round Drum HK91, G3, PSG1/MSG90, HK11 - 7.62x51/.308 Modeled after the discontinued HK G8 50 round drum, the HK Parts drum steps in where the original left off.  Each drum is crafted in the US from billet aluminum with aluminum and steel...
    HKP-21615
    $359.95
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    $359.95
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