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
    New - AIM HK 91 Carbine Length Handguard - Keymod - HKP-18178 HK HK91 Handguard - Carbine Length - Keymod
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    HK HK91 Handguard - Carbine Length - Keymod

    AIM

    Now: $48.95
    Was: $84.95
    HK91 CARBINE LENGTH HANDGUARD- KEYMOD This sleek streamlined design is an ultra-low-profile handguard with generous mounting space to accept all Keymod accessories.  Compatible With: Carbine length variants only. Specifications: Black...
    HKP-18178
    Now: $48.95
    Was: $84.95
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  • New - H&K 3 Position Ambidextrous Selector Lever - BURST ONLY - HKP-01294 HK 3 Position Ambidextrous Selector Lever - BURST ONLY
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    HK 3 Position Ambidextrous Selector Lever - BURST ONLY

    H&K Heckler & Koch

    $99.47
    H&K 3 Position Ambidextrous Selector Lever - BURST ONLY This selector lever will convert any 4 position 0, 1, 2, F or 0, 1, 3, F trigger group to non-full auto BURST capability only, making the rotation 3 position instead of 4 position. This selector...
    HKP-01294
    $99.47
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  • Out Of Stock
    New - KNS Precision HK Push Button Take Down Pin - Small - HKP-21389 KNS Precision HK Push Button Take Down Pin - Small

    KNS Precision HK Push Button Take Down Pin - Small

    KNS Precision

    $24.99
    KNS Precision HK Push Button Take Down Pin - Small .234" This 6mm (.234") diameter take-down pin has a spring-loaded push button. When the button is depressed, the stainless steel keeper detents retract for easy pin removal. The pin is designed to...
    HKP-21389
    $24.99
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    $24.99
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  • New - HKP V51 Fixed Stock - USA - HKP-21269 Vector Arms V51 Fixed Stock - USA
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    Vector Arms V51 Fixed Stock - USA

    HKP HK Parts

    $289.95
    HKP Vector Arms V51 Fixed Stock - USA Fixed A2-style stock assembly configured for the Vector V51 platform. Built using a PTR A2 stock section paired with an HKP V51-specific backplate, converted with the correct rear-collapsible rod and fitted with a...
    HKP-21269
    $289.95
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  • Out Of Stock
    Used - H&K MP5, 93/53/33, G3/91 (9mm, 40/10, 5.56/.223, 7.62/.308) 3 Position Navy Style Universal Trigger Housing - Clipped & Pinned - HKP-19712 HK MP5, 93/53/33, G3/91 (9mm, 40/10, 5.56/.223, 7.62/.308) 3 Position Navy Style Universal Trigger Housing - Clipped and Pinned

    HK MP5, 93/53/33, G3/91 (9mm, 40/10, 5.56/.223, 7.62/.308) 3 Position Navy Style Universal Trigger Housing - Clipped and Pinned

    H&K Heckler & Koch

    $449.95
    H&K MP5, 93/53/33, G3/91 (9mm, 40/10, 5.56/.223, 7.62/.308) 3 Position Navy Style Universal Trigger Housing - Clipped & Pinned Introducing the new 3 Position trigger housing, designed for versatility and performance across multiple applications...
    HKP-19712
    $449.95
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    $449.95
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  • Out Of Stock
    New - PTR HK G3/91 (7.62x51/.308) Match Grade Barrel - Threaded 15x1 - HKP-00873 HK91, G3 Barrel - 7.62 / .308 - 18" - Threaded 15x1 - Match

    HK91, G3 Barrel - 7.62 / .308 - 18" - Threaded 15x1 - Match

    PTR

    $199.95
    PTR HK G3/91 (7.62x51/.308) Match Grade Barrel - Threaded 15x1 Each barrel is current PTR production and has the proper number and depth of flutes for optimum functionality. This barrel is a medium contour barrel that is larger in diameter than a...
    HKP-00873
    $199.95
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  • Used - H&K G3/91 (.22LR) Caliber Conversion Kit - USED - HKP-01147 HK91, G3 Caliber Conversion Kit - .22LR - USED
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    HK91, G3 Caliber Conversion Kit - .22LR - USED

    H&K Heckler & Koch

    $1,497.95
    Heckler and Koch HK G3, HK91 .22LR Caliber Conversion Kit - USED SOLD AS IS. NO RETURNS. Convert any HK91 or  HK G3 rifle to cycle .22LR ammunition with this genuine HK caliber conversion kit. This kit is intended for marksmanship training and...
    HKP-01147
    $1,497.95
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  • WOOX M-LOK Rail Covers - Teardrop - GEN2 WOOX M-LOK Rail Covers - Teardrop - GEN2
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    WOOX M-LOK Rail Covers - Teardrop - GEN2

    WOOX

    $58.95 - $78.95
    WOOX GEN2 Teardrop M-LOK Rail Covers The teardrop M-LOK rail covers upgrade any M-LOK or KeyMod handguard with a warmer feel, more traction, and added heat protection, while bringing that signature wood look to your build. The GEN2 Teardrop pattern uses...
    HKP-22462-M
    $58.95 - $78.95
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  • PTR PDW MOE PR Stock Magpul HKP-22347 HK51, PTR PDW MOE PR Stock
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    HK51, PTR PDW MOE PR Stock

    Magpul

    $249.95
    Magpul HK51, PTR PDW MOE PR Stock - Black Designed for the PTR PDW platform, this adapter ensures a precise fit and secure lockup for stock installation. Features: Secure lockup for repeatable seating and zero retention High-strength aluminum...
    HKP-22347
    $249.95
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  • HKP HK 91/G3 Trigger Group with AC Unity Grip Match Trigger HKP HK Parts HKP-22251 HKP HK 91/G3 Trigger Group with AC Unity Grip Match Trigger HKP HK Parts HKP-22251
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    HK91, G3 Sniper Trigger Group - AC Unity Grip - Match Trigger

    HKP HK Parts

    $644.85
    HK Parts Trigger Group with AC Unity Grip and Match Trigger for HK91 and HK G3 The HK G3 and HK91 match trigger group combined with the AC Unity grip is a great choice for anyone seeking a tactical and aesthetically pleasing build. Featuring a robust...
    HKP-22251
    $644.85
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  • On Sale
    New - B&T APR308 Deployment Bag - HKP-21880 B&T APR308 Deployment Bag
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    B&T APR308 Deployment Bag

    B&T Brugger & Thomet

    Now: $189.95
    Was: $339.95
    B&T APR308 Deployment Bag  Hidden for years in an unmarked crate, these genuine B&T contracted deployment cases are perfect for keeping your valuable B&T APR rifle, or any other rifle, safe and secure. The cases were crafted in Poland by...
    HKP-21880
    Now: $189.95
    Was: $339.95
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    Was: $339.95
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  • New - FMP HK G3 Manual - HKP-21542 FMP HK G3 Manual
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    FMP HK G3 Manual

    $149.95
    FMP HK G3 Manual English-translated manuals for the Factory FMP G3 are available now. This is a rare collector's piece and the perfect item for those aiming to assemble a complete FMP G3 parts kit with an authentic factory manual. The cover is inscribed...
    HKP-21542
    $149.95
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