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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  • Out Of Stock
    New - B&T HK 417/G36K Flash Hider - HKP-21520 HK416, G3, G36 Flash Hider - 15x1 RH - Rotex Interface - B&T

    HK416, G3, G36 Flash Hider - 15x1 RH - Rotex Interface - B&T

    B&T Brugger & Thomet

    $144.99
    B&T Flash Hider with Interface for Rotex III/V/VA Swiss-made flash hider compatible with NATO A2 suppressor mounting HUB's. Specifications: Made in Switzerland Threaded M15x1 RH NATO spec Does not include face shims Compatible With: HK416,...
    HKP-21520
    $144.99
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    $144.99
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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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  • New - HK German SEF SEMI .308 Clipped & Pinned Trigger Group - HKP-00210-CP Semi-Auto SEF Trigger Group - .308
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    Semi-Auto SEF Trigger Group - .308

    H&K Heckler & Koch

    $549.95
    HK German SEF SEMI .308 Clipped & Pinned Trigger Group The new HK German-made semi-auto trigger group comes in .308 caliber already clipped & pinned. Compatible With: HK 91 HK G3 C308 PTR-91 HK .308 rifles. SEF Navy Style Trigger Group...
    HKP-00210-CP
    $549.95
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  • New - H&K 91/G3 (7.62x51/.308) 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin - HKP-17823 HK91, G3 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin
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    HK91, G3 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin

    H&K Heckler & Koch

    $459.95
    H&K 91/G3 (7.62x51/.308) 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin This authentic German HK trigger housing features a 4 position pictogram (0,1,3,F) and is designed for push pin style G3 or Zenith firearms. It is configured for use...
    HKP-17823
    $459.95
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  • On Sale
    New - AIM HK 91 Carbine Length Handguard - Keymod - HKP-18178 HK91 Handguard - Carbine Length - KeyMod
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    HK91 Handguard - Carbine Length - KeyMod

    AIM

    Now: $48.95
    Was: $84.95
    AIM CARBINE LENGTH KeyMod HANDGUARD for HK91 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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  • On Sale
    HK91, G3 Cocking Tube with Hanger - Ribbed - USED HK91, G3 Cocking Tube with Hanger - Ribbed - USED
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    HK91, G3 Cocking Tube with Hanger - Ribbed - USED

    H&K Heckler & Koch

    Now: $27.95
    Was: $34.95
    HK German HK G3, HK91 Ribbed Cocking Tube With Hanger Installed - Used VARYING CONDITION SHOWN - SOLD INDIVIDUALLY DENTED.  REFER TO PICTURES USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Used...
    HKP-00719-USED
    Now: $27.95
    Was: $34.95
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  • Out Of Stock
    HK91, G3 Trigger Shoe HK91, G3 Trigger Shoe

    HK91, G3 Trigger Shoe

    H&K Heckler & Koch

    $12.95
    HK G3 Trigger Shoe Factory Heckler and Koch G3 trigger shoe.  Compatible With:  HK G3 PSG1 MSG90 In-spec. clones and custom builds  
    HKP-22524
    $12.95
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    $12.95
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  • WOOX M-LOK Rail Covers - Checkered - GEN2 WOOX M-LOK Rail Covers - Checkered - GEN2
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    WOOX M-LOK Rail Covers - Checkered - GEN2

    WOOX

    $38.95 - $48.95
    WOOX Checkered GEN2 HK Rifle, SMG M-LOK Rail Covers The checkered GEN2 M-LOK rail covers upgrade any M-LOK or KeyMod handguard with a warmer feel, more traction, and added heat protection. The Checkered texture uses black nylon bushings and is...
    HKP-22463-M
    $38.95 - $48.95
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  • On Sale
    HK G3,91,PTR, 93,33 & MP5, 94 Hammer Strut - USED H&K Heckler & Koch HKP-15445-USED HK G3,91,PTR, 93,33 & MP5, 94 Hammer Strut - USED H&K Heckler & Koch HKP-15445-USED
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    HK MP5, HK90 Series Hammer Strut - USED

    H&K Heckler & Koch

    Now: $5.21
    Was: $9.95
    HK MP5, G3, 91, PTR, 93, 33, HK94 Hammer Strut - USED   SOLD INDIVIDUALLY   USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German Hammer Strut for 90 series rifles and pistols. A perfect...
    HKP-15445-USED
    Now: $5.21
    Was: $9.95
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  • HK51 MOE PR Stock Magpul HKP-22338 AP51 MOE PR Stock - PDW
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    AP51 MOE PR Stock - PDW

    Magpul

    $249.95
    Magpul Century AP51 PDW MOE PR Stock Designed for the Century AP51 PDW platform, this adapter ensures a precise fit and solid lockup for stock installation. Built for durability and proper alignment, it maintains correct stock geometry and function...
    HKP-22346
    $249.95
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  • HK 91/G3 Trigger Group with AC-Unity Grip Conversion Kit HKP HK Parts HKP-22322 HK 91/G3 Trigger Group with AC-Unity Grip Conversion Kit HKP HK Parts HKP-22322
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    HK91, G3 Metal Trigger Housing Conversion Kit - AC Unity Grip

    HKP HK Parts

    $189.95
    HK91, G3 Metal Trigger Housing Conversion Kit - AC Unity Grip This kit includes everything you need to convert a polymer HK91 or G3 trigger group a robust metal housing. Simply use your existing semi-auto SEF trigger pack to complete the conversion. This...
    HKP-22322
    $189.95
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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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    $644.85
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