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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  • Used - H&K 91/G3 (7.62x51/.308) Fixed Stock with Enhanced Heavy Buffer - Alpine Green - Surplus - HKP-18934 HK91, G3 Fixed Buttstock with Enhanced Heavy Buffer - Alpine Green - Surplus
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    HK91, G3 Fixed Buttstock with Enhanced Heavy Buffer - Alpine Green - Surplus

    H&K Heckler & Koch

    $129.95
    HK German Surplus G3, 91, PTR Stock Complete with Enhanced Heavy Buffer Installed - Alpine Green The Alpine green stock was the last version that the German military produced and is the darkest green version available. All stocks are 90's...
    HKP-18934
    $129.95
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  • New - HKP Single Point Sling - ACU Digital Camo - HKP-15041 HK Single Point Sling - ACU Digital Camo
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    HK Single Point Sling - ACU Digital Camo

    HKP HK Parts

    $29.95
    HKP Single Point Sling - ACU Digital Camo HK single-point bungee sling for use on all HK & other firearm applications. This super high-quality sling is a must-have for those who prefer operating with a single-point sling over the traditional 3-point...
    HKP-15041
    $29.95
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  • New - B&T SchleTek Suppressor Cleaner Evolution 1000ml - HKP-21726
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    Suppressor Cleaner Evolution - 1000ml

    SchleTek

    $70.00
    SchleTek Suppressor Cleaner Evolution 1000ml Keep your suppressors clean and optimally functioning with SchleTek suppressor cleaner.  
    HKP-21726
    $70.00
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    $70.00
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  • On Sale
    HK91, G3, PTR Magazine - 20 Round - Date Coded - USED HK91, G3, PTR Magazine - 20 Round - Date Coded - USED
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    HK91, G3, PTR Magazine - 20 Round - Date Coded - USED

    H&K Heckler & Koch

    Now: $24.95
    Was: $34.95
    Heckler and Koch HK91, G3, PTR 20 Round Date Coded Magazine - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY DENTS AND PITTING USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Factory German HK 20...
    HKP-99439-M
    Now: $24.95
    Was: $34.95
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  • HK91, G3 Folding Stock - HDA3 HK91, G3 Folding Stock - HDA3
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    HK91, G3 Folding Stock - HDA3

    Haga Defense

    $349.95
    HDA3 Folding Stock for HK91, G3 The HDA3 is a modular, USA-made stock system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth adjustability, and...
    HKP-22356-M
    $349.95
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    $349.95
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  • New - B&T SchleTek Carbon Cleaner 500 ml Aerosol - HKP-21766
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    Carbon-Cleaner - 500 ml Aerosol

    SchleTek

    $32.95
    SchleTek Carbon Cleaner 500 ml Aerosol Time-saving removal of stubborn fouling. Special formula for heavily used firearms. Frequent and thorough gun cleaning is not only a prerequisite to achieve maximum performance with your firearm, but also a...
    HKP-21766
    $32.95
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  • On Sale
    New - MKE Roller Retainer Plate for Rollers - HKP-22235 MKE Roller Retainer Plate for Rollers MKE HKP-22235
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    HK MP5, 90 Series Holder Plate for Locking Rollers

    MKE

    Now: $24.95
    Was: $29.95
    MKE Roller Retainer Plate for Rollers This item is a common wear item that is great to have on hand as they are one of the top items that break or fail with use and age of the service weapon. Compatible With: HK MP5, 94 HK MP5K, SP89 HKG3, 91,...
    HKP-22235
    Now: $24.95
    Was: $29.95
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  • Used - G3 Incomplete Backplate - Threaded - HKP-20860 HK91, G3 Backplate, Incomplete
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    HK91, G3 Backplate, Incomplete

    H&K Heckler & Koch

    $29.95
    G3 Incomplete Backplate Each backplate is refinished and parkerized as issued to the German military. This refinished backplate comes with a threaded end to accept a threaded recoil rod stop screw. With a quick and easy removable recoil rod stop you will...
    HKP-20860
    $29.95
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  • New - H&K German Ambidextrous Sling Pin Replacement O-Ring - HKP-19985
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    HK German Ambidextrous Sling Pin Replacement O-Ring

    H&K Heckler & Koch

    $5.95
    H&K German Ambidextrous Sling Pin Replacement O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. Brand new factory German manufacture. This item is a common wear/breakage part that does need to be replaced from time...
    HKP-19985
    $5.95
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    $5.95
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  • New - HKP Front Sight Tower Ambi Sling Attachment Weldment - HKP-17881 HK MP5, MP5K Sling Attachment Weldment - Ambi - Front End
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    HK MP5, MP5K Sling Attachment Weldment - Ambi - Front End

    HKP HK Parts

    $14.95
    HKP Front Sight Tower Ambi Sling Attachment Weldment Ambi sling loop that is welled and installed on all MP5F model front sight tower. A great upgrade for that custom build or for those that want to have the ability to have an ambidextrous sling loop at...
    HKP-17881
    $14.95
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    $14.95
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  • New - PTR HK 33/93/G3K Tactical Forearm - HKP-00367 HK33, HK93, G3K Tactical Handguard
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    HK33, HK93, G3K Tactical Handguard

    PTR

    $129.95
    HK 33, 93, G3K & PTR (shorter length) Tactical Hand Guard - US Made This robust tactical forearm allows the addition of either 2, 3, 4, or 6-inch bottom and side rails, giving you the greatest ability to customize your rails and configuration of any...
    HKP-00367
    $129.95
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  • New - H&K 91/93/33/53/G3 (5.56/.223) & (7.62x51/.308) Internal Buffer With Break Springs - HKP-17424
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    HK33, HK53, HK93, HK91, G3 Internal Buffer With Break Springs

    H&K Heckler & Koch

    $17.95
    HK German G3, 91, PTR & HK 33, 93 Internal Buffer Brake Spring New HK German Brake Springs for the standard buffer found on the HK G3, 91, PTR & HK93, 33, 53 rear stocks. Compatible With: All standard A2 fixed stock buffers
    HKP-17424
    $17.95
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    $17.95
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