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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  • On Sale
    Used - HK 91/G3 (7.62x51/.308) Rubberized Mag Pouch - Surplus - HKP-16321 HK91, G3 Rubberized Mag Pouch - Surplus
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    HK91, G3 Rubberized Mag Pouch - Surplus

    Now: $4.95
    Was: $9.95
    German Surplus Green Rubberized Mag Pouch Used Compatible With: HK G3, 91, PTR & CETME Custom HK builds & HK Clones Please note: These range in shades of green color from OD green to Jungle green. If you have a preference please make a note...
    HKP-16321
    Now: $4.95
    Was: $9.95
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  • New - PTR HK 91/G3/51 (7.62x51/.308) Flat With Weldment Set - HKP-02086 HK91, G3, CETME Receiver Flat with Weldment Set
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    HK91, G3, CETME Receiver Flat with Weldment Set

    PTR

    $166.95
    HK91, G3, PTR, CETME Flat & Weldment Combo - PTR Made by PTR91 on original HK tooling using factory specifications and a properly stamped receiver ready to roll and build. No FFL transfer is required as this is an un-folded flat.  Compatible...
    HKP-02086
    $166.95
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  • New - KCI 20 Round HK91/G3/PTR 7.62x51mm/308 Magazine - Black - HKP-19970 HK91, G3, PTR 20 Round Magazine
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    HK91, G3, PTR 20 Round Magazine

    KCI

    $28.95
    HK 91, G3, PTR .308 20 Round All Steel Magazine - KCI Designed to fit your G3, HK91, & PTR style firearms chambered in .308 and 7.62x51. This standard capacity 20-round magazine provides reliable and smooth feeding. Constructed of steel with a grey...
    HKP-19970
    $28.95
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  • New - HKP Universal M-LOK Long Grip - HKP-20680 M-LOK Vertical Foregrip - Long
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    M-LOK Vertical Foregrip - Long

    HKP HK Parts

    $24.95
    HKP Universal M-LOK Long Grip This grip is by far the nicest grip we have encountered for the money. This rock solid grip is a must have for anyone that uses a vertical grip. This is the only vertical grip out there that offers a built in aluminum...
    HKP-20680
    $24.95
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  • New - HKP HK Pistol Grip Parts Storage Holder - HKP-19452 HK 90 Series Pistol Grip Parts Storage Holder
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    HK 90 Series Pistol Grip Parts Storage Holder

    HKP HK Parts

    $29.95
    HK Pistol Grip Parts Storage Holder - SEF & Ambidextrous Housings A must-have item for storage, it doesn't have a battery compartment to maximize storage. This HK grip plug will fit all SEF or Ambidextrous housings that have the holding tabs in the...
    HKP-19452
    $29.95
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  • New - AC-Unity HK G3/HK91 Wide Handguard - HKP-21639 HK91, G3 Wide Handguard
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    HK91, G3 Wide Handguard

    AC-Unity

    $64.95
    AC-Unity HK G3 Wide Handguard G3 length, black, wide handguard with bipod groove. Perfect fit for your HKG3, HK91, or PTR91 that takes standard G3 length handguards. Includes an inner heat shield to protect your hand. The outer design provides a...
    HKP-21639
    $64.95
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  • New - H&K Oversized Barrel Retaining Pin - 5.25mm - HKP-16954
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    HK Oversized Barrel Retaining Pin - 5.25mm

    H&K Heckler & Koch

    $9.95
    H&K Oversized Barrel Retaining Pin - 5.25mm This is the barrel pin used for installing a new or replacement barrel. HK suggests using a new factory barrel pin when installing or reinstalling an HK barrel in the trunnion. Each pin is slightly...
    HKP-16954
    $9.95
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  • New - MFI Snap Sling Hook 1.25" - HKP-01523
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    MFI Snap Sling Hook 1.25"

    MFI

    $4.95
    HK Style 1.25" Snap Hook For Sling This sling hook is designed for wider 1.25" width slings. Made in the USA, and is great for HK sling projects and spares. We offer the 1" and the 1.25" sling hooks for all your HK projects.
    HKP-01523
    $4.95
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  • New - HKP Paddle Style Extended Mag Release - EMR - HKP-17079 HK MP5, MP5K, G3, HK93 Mag Release - Paddle Style - Extended - EMR
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    HK MP5, MP5K, G3, HK93 Mag Release - Paddle Style - Extended - EMR

    HKP HK Parts

    $44.95
    HKP Paddle Style Extended Mag Release - EMR A great addition to any paddle style mag release, such as those found on an HK. The extended mag release is machined from a solid billet of aircraft grade aluminum and hard anodized aluminum for a lightweight...
    HKP-17079
    $44.95
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  • Out Of Stock
    New - HKP Quick Detach Sling Attachment Sling Pin - Small - HKP-18071 HK MP5, HK90 Series Forearm Sling Pin - Quick Detach Attachment

    HK MP5, HK90 Series Forearm Sling Pin - Quick Detach Attachment

    HKP HK Parts

    $37.95
    HKP Quick Detach Sling Attachment Sling Pin - Small The small push pin is used to retain the forearm to the receiver on the HK90 series of firearms. The QD sling pin is a great replacement item as it will allow the user to simply swap the push pin for...
    HKP-18071
    $37.95
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  • New - H&K 91/G3 (7.62x51/.308) Cocking Handle Axle Pin - HKP-01690
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    HK91, G3 Cocking Handle Axle Pin

    H&K Heckler & Koch

    $9.95
    New HK German G3, 91, 21, & PTR Cocking Handle Axle Pin This is a new HK factory part for the .308 HK rifle. This part is the axle pin that holds the cocking handle in place on the cocking tube support. Will also work perfectly for all HK93, HK53,...
    HKP-01690
    $9.95
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  • New - H&K Cocking Tube Hanger Clip - HKP-00349 HK MP5, MP5K, HK33, HK53, HK93, HK91, G3 Cocking Tube Hanger Clip
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    HK MP5, MP5K, HK33, HK53, HK93, HK91, G3 Cocking Tube Hanger Clip

    H&K Heckler & Koch

    $13.95
    Heckler and Koch Cocking Tube Hanger Clip The HK cocking tube support hanger is the part that welds onto the end of the cocking tube that allows the forearm to install with the use of a small push pin. New HK German factory manufactured. Ready to weld...
    HKP-00349
    $13.95
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