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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  • New - H&K 91/G3 (7.62x51/.308) Sniper Trigger Group - Match Trigger - HKP-17031 HK91, G3 Match Trigger Group - Sniper
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    HK91, G3 Match Trigger Group - Sniper

    H&K Heckler & Koch

    $749.95
    HK German SEMI .308 Trigger Group Complete For G3, 91 & PTR Models The HKP match trigger group starts life as a standard 12lb stock trigger pack before being carefully converted by the legendary trigger gunsmith, Bill Springfield.  The result, a...
    HKP-17031
    $749.95
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    $749.95
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  • New - PTR-32 (7.62x39) Locking Piece - 65 degree - HKP-18520 PTR-32 Locking Piece - 65 degree
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    PTR-32 Locking Piece - 65 degree

    PTR

    $67.95
    PTR-32 (7.62x39) Locking Piece - 65 degree New PTR Locking Piece For PTR-32. Marked "32" for the PTR-32 series of rifles and pistols. This is a 65 degree locking piece. New PTR manufacture. This locking piece will also work for custom HK builds as well.
    HKP-18520
    $67.95
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    $67.95
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  • New - HKP MP5 40/10 Ambidextrous (0,1) Trigger Pack - HKP-17231 HK MP5 Trigger Pack - Ambi 0,1 - .40 S&W, 10mm
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    HK MP5 Trigger Pack - Ambi 0,1 - .40 S&W, 10mm

    HKP HK Parts

    $324.95
    HKP MP5 40/10 Ambidextrous (0,1) Trigger Pack Finally a lower cost alternative to the spendy and hard to find all German HK FBI or 0,1 ambi trigger packs. Now for the first time, we have the ever popular trigger pack available in an all German & US...
    HKP-17231
    $324.95
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    $324.95
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  • New - HKP HK MP5 .40 S&W Barrel - Threaded 9/16x24 - 3-Lug - HKP-16402 HK MP5 Barrel - .40 S&W - Threaded 9/16x24 with 3 Lug
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    HK MP5 Barrel - .40 S&W - Threaded 9/16x24 with 3 Lug

    HKP HK Parts

    $249.95
    HKP HK MP5 .40 S&W Barrel - Threaded 9/16x24 - 3-Lug Newly manufactured US Made MP5 .40 S&W barrel that is 3-lugged and threaded with matching thread protector. This is a barrel offering that is made to the highest standards and tolerances and...
    HKP-16402
    $249.95
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    $249.95
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  • Out Of Stock
    New - H&K MP5 A3 Retractable Stock Sling Attachment Bar- Weldable - HKP-17427 HK MP5 A3 Retractable Buttstock Sling Attachment Bar - Weldable

    HK MP5 A3 Retractable Buttstock Sling Attachment Bar - Weldable

    H&K Heckler & Koch

    $9.95
    HK MP5 A3 Retractable Stock Sling Bar This part offering is a factory German HK part new unpainted and ready to weld to your application. Can also be used for upgrading a non-ambi stock to an ambi stock by attaching the sling bar to the A3 stock...
    HKP-17427
    $9.95
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    $9.95
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  • New - H&K MP5 9mm Grenade Launcher Attachment - 3-Lug - HKP-16975 HK MP5 9mm Grenade Launcher Attachment - 3-Lug
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    HK MP5 9mm Grenade Launcher Attachment - 3-Lug

    H&K Heckler & Koch

    $149.95
    H&K MP5 9mm Grenade Launcher Attachment - 3-Lug   This is a rare part and hard to come by. Perfect for MP5 9mm series.   Specifications: 3-Lug Compatible With: HK MP5/MP5K HK SP5/SP5K HK 94
    HKP-16975
    $149.95
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    $149.95
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  • New - H&K 90 Series Hammer Spring Bushing For Burst Trigger Packs - HKP-02398 HK MP5, HK90 Series Hammer Spring Bushing - Burst
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    HK MP5, HK90 Series Hammer Spring Bushing - Burst

    H&K Heckler & Koch

    $19.99
    90 Series Hammer Spring Bushing For Burst Trigger Packs This part will fit both two and three-round burst trigger packs. 
    HKP-02398
    $19.99
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    $19.99
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  • New - B&T MP5SD QD Brass Catcher - HKP-18099 HK MP5SD Brass Catcher - Quick Detach
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    HK MP5SD Brass Catcher - Quick Detach

    B&T Brugger & Thomet

    $210.00
    B&T MP5SD Brass Catcher For Use With B&T Handguard     The B&T brass catcher for the MP5SD locks into perfect position when mounted to the matched B&T's HK MP5SD Tri-Rail Handguard. Features a quick disconnect mechanism for easy...
    HKP-18099
    $210.00
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    $210.00
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  • Used - H&K (7.62/.308) & (5.56/.223) Flash Hider - 15x1 - Used - HKP-00717 H&K (7.62/.308) & (5.56/.223) Flash Hider - 15x1 - Used H&K Heckler & Koch HKP-00717
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    HK33, HK53, HK93, HK91, HK G3 Flash Hider - Threaded 15x1 - Used

    H&K Heckler & Koch

    $15.95
    Heckler and Koch's Flash Hider - 15x1 RH - Used Used / surplus HK German flash hider threaded 15x1 RH.  Please inspect pictures to ascertain the average condition of these flash hiders. Compatible With: HK33 HK53 HK93 HK G3 HK91  
    HKP-00717
    $15.95
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  • HK UMP Barrel Pin Screw HK UMP Barrel Pin Screw
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    HK UMP Barrel Pin Screw

    OMEGA

    $13.95
    Omega UMP Barrel Pin Screw Barrel pin Screw that replaces barrel pins on Omega Gideon Shadow Compatible With: HK UMP HK USC Omega GS
    HKP-22514
    $13.95
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  • On Sale
    HK 30 Round HK MP5, MP5K LEO Marked 9mm Magazine - USED H&K Heckler & Koch HKP-20517-USED HK 30 Round HK MP5, MP5K LEO Marked 9mm Magazine - USED H&K Heckler & Koch HKP-20517-USED
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    HK MP5, MP5K Magazine - LEO Marked - 9mm - 30 Round - USED

    H&K Heckler & Koch

    Now: $134.95
    Was: $199.95
    HK 30 Round HK MP5, MP5K LEO Marked 9mm Magazine - USED SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This is a used H&K German MP5 9mm 30-round magazine. All MP5 magazines...
    HKP-20517-USED
    Now: $134.95
    Was: $199.95
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    Now: $134.95
    Was: $199.95
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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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    $88.95
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