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 - BFSIII HK91, G3, PTR91 HK-C1 Franklin Binary SEF Navy Style Trigger Group - HKP-19646-CP HK MP5, HK91, G3 Binary Trigger Group - SEF Navy - BFSIII
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    HK MP5, HK91, G3 Binary Trigger Group - SEF Navy - BFSIII

    FA Franklin Armory

    $849.95
    Franklin Armory BFSIII HK-C1 - Trigger Group - SEF Navy Style - HK91, G3, PTR91 3 Position HK Binary Trigger Group Binary triggers count as 4 922r compliant components. The components that count towards 922r compliance include the trigger pack box,...
    HKP-19646-CP
    $849.95
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  • New - B&T HK G3/91/PTR Low Profile Mount - Short Version - HKP-16869 HK91, G3 Optic Mount - Low Profile - Short Version
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    HK91, G3 Optic Mount - Low Profile - Short Version

    B&T Brugger & Thomet

    $144.95
    B&T Mounting Rail NAR Low Profile Mount For HK G3, 91, PTR, Short Version Compatible With: HK G3 HK91 PTR91 Specifications: Overall length: 3.25"
    HKP-16869
    $144.95
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  • New - Blitzkrieg PTR Chevron Front Sight Gen 2 - Luminescent Green - HKP-20451 PTR Chevron Front Sight - Gen 2 - Luminescent Green
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    PTR Chevron Front Sight - Gen 2 - Luminescent Green

    Blitzkrieg Components

    $56.99
    Blitzkrieg PTR Chevron Front Sight Gen 2 - Luminescent Green The Blitzkrieg Gen 2 HK-style front sight delivers a fast, bold sight picture with a sharp, precision aiming point. Designed for easy installation, it eliminates the need for tools by using a...
    HKP-20451
    $56.99
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  • New - Harris Engineering Bipod 6-9" - Fully Adjustable With Swivel - HKP-00983 Harris Engineering Bipod 6-9" - Fully Adjustable With Swivel Harris Engineering HKP-00983
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    Harris Engineering Bipod 6-9" - Fully Adjustable With Swivel

    Harris Engineering

    $149.95
    Harris Engineering Bipod 6-9" - Fully Adjustable With Swivel This part is manufactured using high-quality parts to ensure excellent function and sustainable use. It attaches to a sling swivel stud. Carrying your rifle with a sling or shooting off-hand is...
    HKP-00983
    $149.95
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  • New - Magpul HK G3 / HK 91 PRS Lite Stock - HKP-21170-M HK91, G3 Stock - PRS Lite
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    HK91, G3 Stock - PRS Lite

    Magpul

    $289.95
    Magpul HK G3 / HK 91 PRS Lite Stock New G3 / HK91 PRS Lite stock will allow you to shoot your rifle with comfort while adding some style. We take the PRS Lite stock and attach our HK - AR adapter with a refinished back plate to bring you an assembled...
    HKP-21170-M
    $289.95
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  • New - AIM HK to AR15 Adapter - HKP-20891 HK91, G3, PTR PDW Stock Adapter - AR-15 Style
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    HK91, G3, PTR PDW Stock Adapter - AR-15 Style

    AIM

    $54.99
    HK91, G3, PTR PDW Stock Adapter - AR-15 Style The Aim Sports Inc HK to AR15 stock adapter for AR15 stocks. Works with any Mil-spec buffer tube and castle nut to use any Mil-spec AR15/M16 stock of your choice on your HK rifle, SBR, or pistol. With our...
    HKP-20891
    $54.99
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  • New - HKP HK G3 Repair Manual - HKP-15212
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    HK G3 Repair Manual

    HKP HK Parts

    $15.95
    HK G3, 91, PTR Repair Manual This manual contains parts 3 and 4 of the G3 Rifle Manual for the G3, which is the full auto version of the HK91. Part 3 is for troop repair and part 4 contains field repairs. This manual is NOT a heavy-duty...
    HKP-15212
    $15.95
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  • New - H&K (5.56/.223) & (7.62x51/.308) Contact Piece For Paddle Mag Release - HKP-00465 HK91, G3, HK33, HK53, HK93 Paddle Mag Release Contact Piece
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    HK91, G3, HK33, HK53, HK93 Paddle Mag Release Contact Piece

    H&K Heckler & Koch

    $29.95
    Heckler and Koch Contact Piece for Paddle Magazine Release 5.56 / .223 and 7.62x51 / .308 German HK manufacture. The contact piece is used in the magazine release assembly for the paddle mag release. Compatible With: HK33, HK53, HK93 HK91, G3, PTR91
    HKP-00465
    $29.95
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  • New - HKP HK G3, HK 33, HK 93, PTR Front Sight Tower Assembly - HKP-17830 HK33, HK93, G3 Front Sight Tower Assembly
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    HK33, HK93, G3 Front Sight Tower Assembly

    HKP HK Parts

    $49.87
    HKP HK G3, HK 33, HK 93, PTR Front Sight Tower Assembly New US made from a solid billet of ordnance grade steel. Each front sight tower, triple frame set comes complete with a new HK diopter style replaceable front sight post & roll pin. This is the...
    HKP-17830
    $49.87
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  • Out Of Stock
    Used - H&K HK G3/91/PTR F/A Complete Training Bolt Group - HKP-18265

    HK91, G3, PTR Training Bolt Group, Complete - Full Auto

    H&K Heckler & Koch

    $0.00
    Heckler and Koch F/A Complete Training Bolt Group for HK91, G3, and PTR   Surplus HK German Plastic training ammo bolt group. To be used with the readily available and cheap plastic tipped training ammo only! A neat collectible item as only a small...
    HKP-18265
    $0.00
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  • New - HKP HK 91/G3 (7.62x51/.308) Fixed Stock Complete with Enhanced Heavy Buffer - Black - HKP-18937
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    HK91, G3 Fixed Stock Complete with Enhanced Heavy Buffer - Black

    HKP HK Parts

    $279.95
    New HK91, G3, PTR-91 U.S Made (PTR-91 Manufactured) Fixed Stock with Enhanced Buffer Installed Made from all German & U.S. made HK parts. This stock will fit any of the HK G3 & HK 91 & PTR rifles. This stock also counts as one U.S. compliant...
    HKP-18937
    $279.95
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  • Used - HK G3 Complete F/A Steel Lower (SEF) - Green - Surplus - HKP-16215 HK91, G3 Lower, Complete - SEF Full Auto - Green - Surplus
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    HK91, G3 Lower, Complete - SEF Full Auto - Green - Surplus

    H&K Heckler & Koch

    $349.95
    HK Heckler and Koch Complete Full Auto Steel Green Lower SEF from Surplus Stock for HK91, G3 Each lower includes a complete full-auto trigger pack, selector lever, green grip, metal SEF grip frame, and grip screw with washer. All parts are installed and...
    HKP-16215
    $349.95
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