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 - Michaels Machines USC to UMP Stock Block B w/Thumbscrew - HKP-20722 HK USC to UMP Stock Block B with Thumb Screw

    HK USC to UMP Stock Block B with Thumb Screw

    Michaels Machines

    $249.95
    Michaels Machines USC to UMP Stock Block B w/Thumbscrew For use with all HK UMP factory or US made folding stocks. Each unit comes with a thumbscrew on one end and a slotted section on the other end. This is a required part for the HK USC-UMP style...
    HKP-20722
    $249.95
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  • On Sale
    New - Lazy Wolf VP C1 Curved Series Trigger - Blue - HKP-19600 HK VP Series Curved Trigger - Blue
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    HK VP Series Curved Trigger - Blue

    Lazy Wolf

    Now: $94.95
    Was: $134.95
    Lazy Wolf Guns Curved Trigger for the HK VP Series  In a collaboration with Lazy Wolf Guns, HK Parts is offering triggers for your HK VP9 and VP40 handguns. The drop in VP9 series trigger is the best trigger ever developed after more than a year of...
    HKP-19600
    Now: $94.95
    Was: $134.95
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    Now: $94.95
    Was: $134.95
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  • New - Talon Grip HK USP Full Size .45 ACP - Granulate Black - HKP-20280 HK USP Grip Wrap - Granulate - .45 ACP
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    HK USP Grip Wrap - Granulate - .45 ACP

    Talon Grip

    $19.99
    TALON Grip - USP Full Size .45 - Granulate Black TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and easy. The...
    HKP-20280
    $19.99
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  • New - HK PARTS, H&K 27 Round HK VP9, HK P30 9mm Magazine Complete - Red - HKP-19840
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    HK VP9, P30 Magazine, Complete - 27 Round - 9mm - Red

    HKP HK Parts / Heckler & Koch

    $99.95
    27 Round Magazine Complete - Red - 9mm - HK PARTS - HK VP9, HK P30 HK Parts +10 alloy magazine extension coupled with an HK 17 round factory German magazine adds 10 additional rounds total for a fully assembled 27 round HK VP9/P30 magazine. Ideal for...
    HKP-19840
    $99.95
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    $99.95
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  • New - H&K VP9, VP40 Grip Panel Right Side - Large - Black - HKP-16812 HK VP9, VP40 Grip Panel Right Side - Large
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    HK VP9, VP40 Grip Panel Right Side - Large

    H&K Heckler & Koch

    $19.95
    H&K VP9, VP40 Grip Panel Right Side - Large - Black New HK German manufactured. Left side, medium size perfect for spare or for custom stippling projects. Drop-in part for your HK VP Pistol. Compatible With: HK VP9 HK VP40 HK VP9A1 F HK VP9A1 K
    HKP-16812
    $19.95
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  • New - H&K HK Mark 23 Rear Sight Retaining Screw - HKP-01628
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    HK Mark 23 Rear Sight Retaining Screw

    H&K Heckler & Koch

    $19.95
    HK Mark 23 Rear Sight Retaining Screw
    HKP-01628
    $19.95
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  • Out Of Stock
    New - HK45 VP9 P30 Trijicon RMR optic mount kit with plates screws and hex keys - HKP-17336 HK45 VP9 P30 optic mount kit compatible with Trijicon RMR red dot sight including mounting plates, screws, and hex keys

    HK VP9, P30, HK45 Optic Plate Kit - Trijicon RMR, SRO - Red Dot Pistol Mount

    Trijicon

    $124.95
    Trijicon HK VP9/P30/45 RMR Pistol Mount Trijicon manufactured RMR mount to allow the use of an RMR to replace the rear sight on HK pistols. Compatible With: HK VP9, VP9SK, VP40 (excludes VP9 optic ready slides) HK VP9A1 F, VP9A1 K HK45, HK45...
    HKP-17336
    $124.95
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  • New - Heckler and Koch HK USP Jet Funnel Steel Floor Plate - HKP-01204 HK USP Jet Funnel Floorplate - 9mm, .40 S&W - Steel
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    HK USP Jet Funnel Floorplate - 9mm, .40 S&W - Steel

    H&K Heckler & Koch

    $49.95
    Heckler and Koch Steel Jet Funnel Floor Plate for HK USP 9mm and .40 S&W A great spare and replacement part to have on hand. The HK USP jet funnel floorplate will fit the original style and the new style magazines. Compatible With: USP Please...
    HKP-01204
    $49.95
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  • Out Of Stock
    New - H&K HK MR556 M-LOK 16.5" Upper Receiver Assembly - Black - HKP-17366 HK MR556 Upper Receiver Kit -16.5" - M-LOK

    HK MR556 Upper Receiver Kit -16.5" - M-LOK

    H&K Heckler & Koch

    $1,779.95
    New HK Factory German MR556 Upper Kit with M-LOK forearm Includes: Complete MR556 upper receiver with M-LOK forearm MR556 Bolt group Complete Tungsten Filled HK Buffer HK Buffer Spring One 30 Round HK Steel Maritime Magazine No FFL required as the...
    HKP-17366
    $1,779.95
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    $1,779.95
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  • New - H&K HK MR556/416 Bolt Carrier - HKP-02718 HK416, MR556 Bolt Carrier
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    HK416, MR556 Bolt Carrier

    H&K Heckler & Koch

    $397.95
    H&K HK MR556/416 Factory Bolt Carrier With The Newer Style Bolt Retaining Key  This is the factory one-piece carrier that has the out-of-battery disconnect and the bolt retaining latch assemblies installed to make up the HK MR556 (556...
    HKP-02718
    $397.95
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    $397.95
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  • New - H&K HK SL8/G36 Front Sight - Black - HKP-00638 HK SL8, G36 Front Sight
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    HK SL8, G36 Front Sight

    H&K Heckler & Koch

    $19.95
    HK German SL8/G36 (G36,G36K,G36C & SL8) Front Sight Post - New This item is the replacement polymer front sight post for the HK sight rails.
    HKP-00638
    $19.95
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  • New - HK G36/MP7 (4.6x30/5.56/.223) Firing Pin Bolt O-Ring - HKP-18373 HK MP7, G36, Bolt O-Ring - Firing Pin - US
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    HK MP7, G36, Bolt O-Ring - Firing Pin - US

    USA

    $5.95
    HK G36 & MP7 Firing Pin Bolt O-ring. This is also the O-ring for the retaining pin for the MP7- US. Compatible With: HK G36 HK MP7
    HKP-18373
    $5.95
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    $5.95
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