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 91/G3/MSG90 (7.62x51/.308) 5 Round Magazine - Steel - HKP-00220 HK91, G3, PTR Magazine - 5 Round - Steel
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    HK91, G3, PTR Magazine - 5 Round - Steel

    H&K Heckler & Koch

    $174.95
    New HK German 5 Round Factory G3 and HK91 .308 Steel Magazine Factory German steel magazine.  This is an original German 5 round magazine from HK, not a modified assembly/cut-down magazine.  These mags are long out of production and only a...
    HKP-00220
    $174.95
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  • Out Of Stock
    New - HK Ambidextrous Sling - Green - HKP-00183

    HK Ambidextrous Sling - Green

    H&K Heckler & Koch

    $149.95
    HK Ambidextrous Sling - Green  This sling is the factory HK Green 1.25" Ambi Sling with dual HK sling hooks for use on either the left or right side of the weapon. Best used with the ambi sling pins as the option shown below. Can be used on nearly...
    HKP-00183
    $149.95
    Out Of Stock
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    $149.95
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  • On Sale
    New - Ergo Harris Bipod Mount - KeyMod Handguard - HKP-17874
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    Harris Bipod Mount - KeyMod Handguard

    Ergo

    Now: $9.95
    Was: $38.95
    Ergo Harris Bipod Mount - KeyMod Handguard   Features: KeyMod Bipod Mount Black anodized 6061-T6 Alum. Compatible With: Harris-style bipods
    HKP-17874
    Now: $9.95
    Was: $38.95
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  • On Sale
    HK Linear Compensator - Threaded 15x1 RH - 5.56 and .308 - BLEMISHED HK Linear Compensator - Threaded 15x1 RH - 5.56 and .308 - BLEMISHED
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    HK Linear Compensator - Threaded 15x1 RH - 5.56 and .308 - BLEMISHED

    HKP HK Parts

    Now: $89.95
    Was: $149.95
    HKP HK Linear Compensator - Threaded 15x1 RH - 5.56 and .308 - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Linear compensators give you the best of...
    HKP-99398
    Now: $89.95
    Was: $149.95
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    Now: $89.95
    Was: $149.95
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  • HK91, G3, HK33, HK93, HK53 Grip For Metal Frames HK91, G3, HK33, HK93, HK53 Grip For Metal Frames
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    HK91, G3, HK33, HK93, HK53 Grip For Metal Frames

    H&K Heckler & Koch

    $24.95
    Heckler and Koch Grip for Metal Frames for HK91, G3, HK33, HK53, HK93 This HK grip is designed for metal-frame trigger housings used on HK91 and G3 pattern firearms and shares the same grip interface with HK33, HK53, and HK93 platforms. It provides a...
    HKP-22483
    $24.95
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  • HK91, G3 Magazine - 15 Round - Alloy HK91, G3 Magazine - 15 Round - Alloy
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    HK91, G3 Magazine - 15 Round - Alloy

    H&K Heckler & Koch

    $44.95
    Heckler and Koch HK91, G3, MSG90 15-Round Alloy Magazine Manufactured by Heckler & Koch and converted to 15-round capacity in the United States using a U.S.-made floorplate. Counts as one U.S.-made part for 922r compliance. Compatible With: HK91,...
    HKP-22427
    $44.95
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  • On Sale
    HK91, HK G3 Locking Piece - USED H&K Heckler & Koch HKP-16712-USED HK91, HK G3 Locking Piece - USED H&K Heckler & Koch HKP-16712-USED
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    FMP Locking Piece - USED

    H&K Heckler & Koch

    Now: $8.93
    Was: $14.95
    FMP Locking Piece - USED SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German Locking Piece For FMP - USED. This is the factory correct for FMP firearms. Used pulled from...
    HKP-16712-USED
    Now: $8.93
    Was: $14.95
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  • Compact Vertical Foregrip with Hand stop - M-LOK Compact Vertical Foregrip with Hand stop - M-LOK
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    Compact Vertical Foregrip with Hand stop - M-LOK

    JMK

    $88.95
    Compact Vertical Foregrip with Hand stop - M-LOK The JMK Vertical Foregrips are ideally suited for applications with restricted space. Equipped with a rapid, straightforward M-LOK attachment system, it can be mounted on any configuration with an M-LOK...
    HKP-22406-M
    $88.95
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  • HK G3 Complete Parkerized Rear Receiver Section - SURPLUS FMP HK CONTRACT HKP-22375 HK G3 Complete Parkerized Rear Receiver Section - SURPLUS FMP HK CONTRACT HKP-22375
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    HK FMP G3 Rear Receiver Section - SURPLUS

    FMP HK CONTRACT

    $24.95
    H&K G3 Complete Parkerized Rear Receiver Section without Rear Sight - SURPLUS UNIT CONDITION WILL VARY  Steel rear receiver section manufactured by FMP on HK tooling. Does not include the rear sight.  Compatible with: HK G3, HK91 In-spec...
    HKP-22375
    $24.95
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  • New - MI Blast Can 5/8-24 Thread - HKP-21536 MI Blast Can 5/8-24 Thread
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    MI Blast Can 5/8-24 Thread

    MI Midwest Industries

    $38.95
    MI Blast Can 5/8x24 Thread Compatible With: HK 91/G3 HK MR762 HK 23/21/11 HK MSG90 HK PSG1 Specifications: Directs muzzle blast forward on short barrel rifles and pistols. Does not reduce recoil or flash. Constructed from 6061 aluminum, and hardcoat...
    HKP-21536
    $38.95
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  • New - H&K / HKP V51 Fixed Stock - HKP-21270-M Vector Arms V51 Fixed Stock
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    Vector Arms V51 Fixed Stock

    HKP HK Parts

    $279.95
    H&K / HKP V51 Fixed Stock HK Parts A2 style stocks for the Vector V51 platform. We start with a like-new backplate and convert it into a V51 collapsible style and pair it with a like-new, hand-picked stock.  The result, a complete A2 stock that...
    HKP-21270-M
    $279.95
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  • Out Of Stock
    New - HKP PTR PDW (7.62x51/.308) Complete Bolt Group - HKP-17389 HK PTR PDW Bolt Group - Complete

    HK PTR PDW Bolt Group - Complete

    HKP HK Parts

    $379.95
    US Made PTR Bolt Group Complete Semi-Auto 308. Factory correct bolt head and locking piece for use in the PTR PDW chambered in 7.62X51 or 308. Brand new May 2015 manufacture. This is the correct bolt for all PTR PDW with 8" barrels.
    HKP-17389
    $379.95
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    $379.95
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