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
    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, HK33, HK53, HK93, HK91, G3 Trigger Housing - 3 Position Navy Style - Clipped and Pinned

    HK MP5, HK33, HK53, HK93, HK91, G3 Trigger Housing - 3 Position Navy Style - 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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  • 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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  • 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 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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    Now: $5.21
    Was: $9.95
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  • Rail Panel Cover - M-LOK - 3 Slot Rail Panel Cover - M-LOK - 3 Slot
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    Rail Panel Cover - M-LOK - 3 Slot

    JMK

    $18.95 - $23.95
    JMK Rail Panel Cover - M-LOK - 3 Slot JMK M-LOK rail panels are compatible with platforms featuring M-LOK slots. These modular panels are suited for numerous applications. Each panel is sold individually. M-LOK panels are CNC-machined from solid...
    HKP-22403-M
    $18.95 - $23.95
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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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  • New - MKE 90 Series Sear & Trigger Axle - HKP-22233 MKE 90 Series Sear & Trigger Axle MKE HKP-22233
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    HK90 Series Trigger and Catch Axle - USA

    MKE

    $1.99
    HK Sear and Trigger Axle For 90 Series - SURPLUS MKE sear and trigger axle for the 90 series style trigger packs. Each axle pin (aka pivot pin) measures .197 inches (5.0mm). Each HK trigger pack uses a total of 2 of these axle pins per trigger pack...
    HKP-22233
    $1.99
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    $1.99
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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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  • Out Of Stock
    New - KNS Precision HK Push Button Take Down Pin - Large - HKP-21388 HK MP5, HK33, HK91 Take Down Pin - Push Button - Large

    HK MP5, HK33, HK91 Take Down Pin - Push Button - Large

    KNS Precision

    $24.99
    KNS Precision HK Push Button Take Down Pin - Large .275" This 7mm (.275") 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-21388
    $24.99
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    $24.99
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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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  • 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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    $174.95
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