Parts

Parts

At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.

Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.

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  • Out Of Stock
    New - PTR HK G3/91 (7.62x51/.308) Locking Piece- 45 Degree - HKP-18518 HK91, G3 (7.62x51/.308) Locking Piece- 45 Degree

    HK91, G3 (7.62x51/.308) Locking Piece- 45 Degree

    PTR

    $21.95
    45 Degree Locking Piece - US Made PTR standard 45 degree locking piece made in the USA by PTR and is design to be a direct replacement for all .308 HK style firearms. Compatible With: G3 PTR 91 HK 91 Other costume clones
    HKP-18518
    $21.95
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    $21.95
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  • Out Of Stock
    New - Universal Bore Cleaning Brush - 9mm/10mm/.40 S&W - HKP-00917 Barrel Bore Cleaning Brush - 9mm / 10mm / .40 S&W

    Barrel Bore Cleaning Brush - 9mm / 10mm / .40 S&W

    $13.95
    Universal Bore Cleaning Brush - 9mm/10mm/.40 S&W The HK combination brush was designed exclusively to clean the HK 9mm and 10mm fluted chamber and bore with one easy stroke. This brush has brass and stainless steel bristles. 
    HKP-00917
    $13.95
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  • New - Choate MP5 & HK94 Tactical Folding Stock - HKP-00778 HK MP5, HK94 Tactical Folding Stock
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    HK MP5, HK94 Tactical Folding Stock

    Choate

    $224.95
    Choate MP5 & HK94 Tactical Folding Stock Each stock is adjustable from 10" to 12" using the included adjustable spacer system, which will allow a full 2" range in adjustment for the specific user or mission requirements. This will enable...
    HKP-00778
    $224.95
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    $224.95
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  • Out Of Stock
    New - H&K Screwdriver for Adjustable Rear Sight - HKP-21981 HK Screwdriver for Adjustable Rear Sight

    HK Screwdriver for Adjustable Rear Sight

    H&K Heckler & Koch

    $9.95
    Screwdriver for Adjustable Rear Sight Precision screwdriver designed for adjusting rear sights. Ideal for fine-tuning windage and elevation.    
    HKP-21981
    $9.95
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  • New - HKP HK 416 .22 LR Flash Hider - HKP-21576 HKP HK 416 .22 LR Flash Hider
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    HKP HK 416 .22 LR Flash Hider

    HKP HK Parts

    $39.95
    HKP HK 416 .22 LR Flash Hider  Enhance your 416.22 pistol with a direct-mount flash hider boasting an elegant Birdcage style for an unmistakable custom appearance. Included O-ring ensures a securely locked flash hider, guaranteeing durability and...
    HKP-21576
    $39.95
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  • New - HKP HK SP5 ACR Adapter - HKP-21519 HK SP5 ACR Stock or Brace Adapter
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    HK SP5 ACR Stock or Brace Adapter

    HKP HK Parts

    $139.95
    HKP HK SP5 ACR Stock or Brace Adapter This adapter allows the ACR stock to be fully compatible with the SP5 and in-spec MP5 platforms. It’s built from aircraft-grade aluminum with a pre-installed buffer for a straightforward, drop-in conversion...
    HKP-21519
    $139.95
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  • On Sale
    New - TPM Glock 9mm +3 Magazine Extension - HKP-21136-M Glock 9mm +3 Magazine Extension
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    Glock 9mm +3 Magazine Extension

    Tactical Precision MFG

    Now: $16.46
    Was: $39.95
    TPM Glock 9mm +3 Magazine Extension This extension is made from machined 6061 aluminum. This magazine extension will increase the capacity, reload speed, mag drops, and overall functionality of your pistol. Available in various colors to customize to...
    HKP-21136-M
    Now: $16.46
    Was: $39.95
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    Now: $16.46
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  • New - Comp-Tac HK P2000 Comp Carry Holster - Black - HKP-21118-M HK P2000 Holster - Comp Carry
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    HK P2000 Holster - Comp Carry

    Comp-Tac

    $89.95
    Comp-Tac HK P2000 Comp Carry Holster This holster is manufactured by the best holster company in the business, Comp-Tac, specifically for use with the HK Parts compensators. This holster is based on the ever-popular Comp-Tac International holster and...
    HKP-21118-M
    $89.95
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  • New - H&K MP5K 3 Position (0,1,F Pictogram) Navy Style Ambidextrous Housing - Push Pin - HKP-17143 HK MP5K 3 Position (0,1,F Pictogram) Navy Style Ambidextrous Housing - Push Pin
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    HK MP5K 3 Position (0,1,F Pictogram) Navy Style Ambidextrous Housing - Push Pin

    H&K Heckler & Koch

    $349.95
    H&K MP5K 3 Position (0,1,F Pictogram) Navy Style Ambidextrous Housing - Push Pin - 9mm This is a factory German push pin style housing. HK marked and new latest factory fresh production. Specifications: 3 Position Pictogram Markings: 0,1,F Navy...
    HKP-17143
    $349.95
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  • Out Of Stock
    New - RCM HK VP9SK 9mm Tactical Barrel - Threaded 13.5x1 LH - HKP-19262 HK VP9SK Tactical Barrel - 9mm - Threaded 13.5x1 LH

    HK VP9SK Tactical Barrel - 9mm - Threaded 13.5x1 LH

    RCM

    $225.00
    RCM HK VP9SK 9mm Tactical Barrel - Threaded 13.5x1 LH   Each VPSK Tactical barrel is machined from ordnance grade steel, heat treated then nitrided inside and out. This is the finest threaded replacement barrel for the HK VP9SK 9mm pistol, ideal as...
    HKP-19262
    $225.00
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  • New - H&K HK VP9, HK VP40 Catch Spring for Disassembly Lever - HKP-16786
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    HK VP9, VP40 Disassembly Lever Spring

    H&K Heckler & Koch

    $5.95
    Catch Spring For Disassembly Lever HK VP9, HK VP40 Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP40
    HKP-16786
    $5.95
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  • Out Of Stock
    New - H&K HK MR762/417 Picatinny Quad Rail Handguard Complete - Black - HKP-16629 HK417, MR762 Handguard - Picatinny Quad Rail - 9"

    HK417, MR762 Handguard - Picatinny Quad Rail - 9"

    H&K Heckler & Koch

    $393.95
    H&K MR762/417 Picatinny Quad Rail Handguard - 9" Factory HK German MR762, HK417 handguard with mounting screws. Compatible With: HK MR762 A1, A4 HK417 MR308
    HKP-16629
    $393.95
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