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 HK 91/G3 (7.62x51/.308) Complete Tungsten Full Auto Bolt Group - HKP-16249 HK91, G3 Complete Tungsten Full Auto Bolt Group
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    HK91, G3 Complete Tungsten Full Auto Bolt Group

    HKP HK Parts

    $549.95
    HKP HK 91/G3 (7.62x51/.308) Complete Tungsten Full Auto Bolt Group US Made HK 91/G3 Full Auto Bolt Group Complete - NEW Each bolt group is built using HK factory prints, specs here in the US. As an added bonus each bolt group counts as two US parts for...
    HKP-16249
    $549.95
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    $549.95
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  • Refurbished - HKP SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished - HKP-21921 HK SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished
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    HK SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished

    HKP HK Parts

    $34.95
    HKP SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished HK steel SEF short axle selector lever. Fits all metal HK grip frames. Please note that the polymer (plastic) style SEF housing uses the long axle SEF selector lever and not this...
    HKP-21921
    $34.95
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    $34.95
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  • New - EBO HK 91/G3 (7.62x51/.308) Tungsten Full Auto Carrier - Made by EBO Under HK Contract - HKP-16572 HK91, G3 Tungsten Full Auto Carrier - Made by EBO Under HK Contract
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    HK91, G3 Tungsten Full Auto Carrier - Made by EBO Under HK Contract

    EBO

    $199.95
    Used HK Contract Greek (EBO) F/A Date Coded Tungsten Filled Bolt Carrier. HK German G3 F/A date coded bolt carrier with the tungsten inserts. The tungsten inserts and upgrade is ideal for those that are having bolt bounce issues or want the smoothest...
    HKP-16572
    $199.95
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    $199.95
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  • New - H&K 91/G3 (7.62x51/.308) Rear Sight - HKP-00361 HK91, G3 Rear Sight
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    HK91, G3 Rear Sight

    H&K Heckler & Koch

    $28.95
    HK German Factory Rear Sight Assembly With Drum Assembly - New Each rear sight is a brand new, old stock genuine Heckler & Koch rear sight. Comes as shown. Mounting hardware is offered separately. Now out of production, it's rare and hard to find in...
    HKP-00361
    $28.95
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  • New - AIM HK 91/G3 (7.62x51/.308) Rifle Length Handguard - Keymod - HKP-18179 HK91, G3 Rifle Length Handguard - Keymod
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    HK91, G3 Rifle Length Handguard - Keymod

    AIM

    $89.95
    HK 91, G3, PTR RIFLE LENGTH HANDGUARD - KEY MOD This sleek streamlined design is an ultra low profile handguard with generous mounting space to accept all KeyMod accessories. Superior ergonomics and simple, drop-in installation makes this the best HK...
    HKP-18179
    $89.95
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    $89.95
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  • On Sale
    Refurbished - HK G3/91 (7.62x51/.308) 15 Round Steel Magazine - Refinished - BLEMISHED - HKP-21922-B HK G3/91 (7.62x51/.308) 15 Round Steel Magazine - Refinished - BLEMISHED
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    HK G3/91 (7.62x51/.308) 15 Round Steel Magazine - Refinished - BLEMISHED

    H&K Heckler & Koch

    Now: $44.95
    Was: $84.95
    HK G3/91 (7.62x51/.308) 15 Round Steel Magazine - Refinished - BLEMISHED MAGAZINE BODIES HAVE PITTING - CONDITION MAY VARY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES...
    HKP-21922-B
    Now: $44.95
    Was: $84.95
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    Now: $44.95
    Was: $84.95
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  • New - DTAC HK93/33/G3K M-LOK Modular Handguard - HKP-20015 HK33, HK93, G3K M-LOK Modular Handguard
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    HK33, HK93, G3K M-LOK Modular Handguard

    DTAC Dakota Tactical

    $189.95
    DTAC HK93/33/G3K M-LOK Modular Handguard Our Modular Handguard System is packed full of features, taking your roller-lock firearm to the next level of versatility. Features: Made in the USA (922R compliant part) M-LOK accessories compatible 25...
    HKP-20015
    $189.95
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    $189.95
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  • New - SB Tactical HK91 SBA4 Pistol Stabilizing Brace & Adapter - HKP-19931 HK91 SBA4 Pistol Stabilizing Brace and Adapter
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    HK91 SBA4 Pistol Stabilizing Brace and Adapter

    SB Tactical

    $319.95
    SB Tactical HK91 SBA4 Pistol Stabilizing Brace & Adapter Includes: G3, HK91 backplate & recoil assembly AR, M4 stock adapter Complete buffer assembly Castle nut SB Tactical Brace Features: Made in the USA Designed after the SBM4 5-position...
    HKP-19931
    $319.95
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    $319.95
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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 Stock with Enhanced Heavy Buffer - Alpine Green - Surplus
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    HK91, G3 Fixed Stock 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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    $129.95
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  • New - H&K Cocking Tube Extrusion - 12" Section - HKP-13487 HK Cocking Tube Extrusion - 12" Section
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    HK Cocking Tube Extrusion - 12" Section

    H&K Heckler & Koch

    $54.95
    H&K Factory Cocking Tube Extrusion 12" Section HK cocking tube section is perfect for custom HK cocking tube projects. Overall length is 12" long. All steel and ready for that custom project or custom build. Perfect for custom cocking tube...
    HKP-13487
    $54.95
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  • On Sale
    New - MKE Trigger Pack Ejector Lever Axle - HKP-22241 MKE Trigger Pack Ejector Lever Axle MKE HKP-22241
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    HK90 Series Ejector Lever Axle for SEF, Navy, and Burst Trigger Packs

    MKE

    Now: $13.46
    Was: $17.95
    MKE Trigger Pack Ejector Lever Axle Fits all SEF & Ambidextrous style HK trigger packs regardless of caliber. MKE product made on HK tooling.  Fits all of the following 90 series trigger packs: SEF, O,1 Navy Burst
    HKP-22241
    Now: $13.46
    Was: $17.95
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    Now: $13.46
    Was: $17.95
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  • Used - EBO HK G3 (7.62x51/.308) Parts Kit - Tungsten Filled Carrier - (Greek HK Contract) - HKP-17695 HK G3 Parts Kit  - Tungsten Filled Carrier - (Greek HK Contract)
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    HK G3 Parts Kit - Tungsten Filled Carrier - (Greek HK Contract)

    EBO

    $389.95
    HK Contract Greek EBO G3 .308/7.62 X 51mm Surplus Parts Kit Rare and HK Greek EBO Surplus G3 parts kits with the Tungsten filled bolt carriers. Each demilled parts kit comes with all parts from a functional HK G3 full auto rifle except the barrel and...
    HKP-17695
    $389.95
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    $389.95
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