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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HK Mark 23 Flash Hider - 4 Prong - Threaded 9/16x24 RH
USA
$79.95HK Parts .45 ACP 4 Prong Flash Hider Threaded 9/16x24 RH for HK Mark 23 The 9/16x24 RH Thread 4 Prong Flash Hider is built to the highest standards. Each flash hider adds a neat look and feel while providing outstanding flash hiding capabilities...HKP-02187$79.95 -
HK Mark 23 Flash Hider - Vortex - 16x1 RH
Smith Enterprises
$79.95Smith Enterprises HK Mark 23 .45 ACP Vortex Pistol Flash Hider - 16x1 RH The Vortex Flash Hider is built to the highest standards, featuring proven flash-hiding capabilities for the Mark 23 and other 16x1 RH threaded barrels. Crafted in the USA from 4140...HKP-15806$79.95 -
HK Mark 23 Magazine Release Spring
H&K Heckler & Koch
$10.95Heckler and Koch Magazine Release Spring for HK Mark 23 Compatible with: Mark 23HKP-01789$10.95 -
HK USP .45 ACP Trigger
H&K Heckler & Koch
$24.95H&K HK USP .45 ACP Trigger Heckler & Koch German USP 45, trigger. Steel over molded with polymer. Compatible With: HK USP 45 Full SizeHKP-16541$24.95 -
Out Of Stock
HK USP Control Decock Only V4 Safety Lever
H&K Heckler & Koch
$49.95H&K HK USP Control Decock Only V4 Safety Lever Lever for left-handers to have the de-cocker (no safety) function. The control lever fits on the right side of the frame. Compatible With: HK USP 9mm HK USP 40 S&W HK USP 45 ACPHKP-01417$49.95 -
HK VP9, P30 Compact Paddle Holster - RH - FDE
Safariland
$47.95Safariland Compact Right Hand Paddle Holster for HK VP9, HK P30 The Safariland 578 GLS HK Pro-fit holster is a multi-purpose holster primarily designed for concealment and comfort. With minor adjustments with the included tool the holster will fit over...HKP-17547$47.95 -
Out Of Stock
$249.95 -
HK416, MR556, HK417, MR762 Trigger
H&K Heckler & Koch
$189.95H&K HK MR556/MR762/416/417 Trigger Made in Germany. Compatible With: HK MR556 HK 416 HK MR762 HK 417HKP-15210$189.95 -
HK G36, SL8 Bolt Catch Spring
H&K Heckler & Koch
$9.95HK German G36 & SL8 Bolt Catch SpringHKP-01861$9.95 -
HK UMP, G36 Selector Lever - Right - 3 Position
H&K Heckler & Koch
$19.95HK UMP & G36 Right Safety Selector Lever For All 3 Position Lowers OnlyHKP-01888$19.95 -
HK UMP Paddle Magazine Release - Extended
HKP HK Parts
$34.95HKP HK Parts Extended Paddle Magazine Release for HK UMP 9mm, .40 S&W, .45 ACP Billeted alloy UMP magazine release. This is a very common repair and replacement part as they are fairly easy to break on the UMP lower. With this new metal mag release...HKP-17919$34.95 -
Out Of Stock
HK UMP, USC, G36, SL8 Compression Spring - Index Plate
H&K Heckler & Koch
$7.95H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Index Plate Compression SpringHKP-16496$7.95