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 VP9, P30, HK45 Tru-Dot Front Night Sight
Meprolight
$45.95Meprolight HK VP9/45/P30 Tru-Dot Front Night Sight Bright & tough night sights are three-dot iron sights that increase night-fire shooting accuracy by as much as five times over conventional sights. Equally impressive, they do so with the same...HKP-16588$45.95 -
On Sale
HK P30SK, P30SK Tactical Compensator- Quick Detach
HKP HK Parts
Now: $99.95Was: $149.95HKP HK P30SK/Tactical Comp Weight™ Quick Detach Compensator Compatible With: HK P30SK (Heckler & Koch P30SK) Standard Length barrel, Tactical Length barrel, Threaded barrel, Non-Threaded barrel Specifications: Weight: 3...HKP-18084Now: $99.95Was: $149.95 -
HK45, P30 Lockout Key
H&K Heckler & Koch
$12.95Safety Lockout Key HK45, HK45C, P30, & P30L New HK German lockout key for the factory HK mag release lockout. Compatible With: HK 45, HK45 Tactical HK 45C, HK45C Tactical All HK P30 All HK P30L All HK P30HKP-02504$12.95 -
HK P30 Series Grip Shell - Right - Large
H&K Heckler & Koch
$19.95HK P30, P30L, & P30S Left Grip Shell - Large Perfect for those who have slightly larger hands. Compatible With: HK P30 HK P30L HK P30SHKP-01576$19.95 -
Light and Laser Mount - Tactical TLR-4 - Green
Streamlight
$319.95Streamlight TLR-4 Tactical Light and Laser Combo - Green Compact weapon-mounted light and green laser combination unit featuring a white LED and integrated green aiming laser. Designed for rail-equipped handguns, the TLR-4 attaches using the included...HKP-16914$319.95 -
HK USP Roll Pin for Hammer
H&K Heckler & Koch
$3.95H&K HK USP Roll Pin for Hammer Cylindrical pin used for the bobbed hammer and spurred hammer strut among other uses.HKP-17541$3.95 -
HK MP7, G36 Picatinny Rail
H&K Heckler & Koch
$59.95H&K HK MP7/G36 Picatinny Rail New HK German 7 Slot Aluminum Picatinny Rail with hardware for HK MP7 and G36. Specifications: MP7 - Side Rail G36 - Bottom Rail Overall Length: 3.75"HKP-18856$59.95 -
HK416, MR556, HK417, MR762 Brass Catcher
B&T Brugger & Thomet
$289.95B&T Picatinny Rail-Mount Brass Catcher This B&T brass catcher is quick and easy to install on to your factory picatinny mount equipped handguard. If your handguard does not have a picatinny rail to mount the brass catcher, you can simply...HKP-16899$289.95 -
HK416, MR556 14.5" Super Modular Rail System - FDE
Geissele
$549.95Geissele HK416, MR556 14.5" Modular Rail - Desert Dirt Color (DDC) 13.625" overall length Geissele HK 416, MR556 free float rail with HK 416 14.5" barrel and MR 556 16.5" barreled upper. This is a direct replacement item for your HK MR556 and 14.5"...HKP-16462$549.95 -
HK G36, G36K Gas Block
H&K Heckler & Koch
$99.95HK G36E, G36K - Gas Block - German HK The real deal. HK German G36E, G36K Factory Gas Block. New uninstalled. Compatible With: SL8 Other G36 variants and custom builds and projectsHKP-16351$99.95 -
HK UMP Lower - Navy 3 Position 0,1,Full
H&K Heckler & Koch
$1,249.95HK Heckler and Koch 3 Position Navy Lower for HK UMP New German Heckler & Koch UMP 3 position (0, 1, full) Navy lower. Each lower comes complete with all the factory internals. These lowers are ideal for the USC to UMP conversion and to keep as a...HKP-00592$1,249.95 -
HK UMP, USC Bolt Catch
H&K Heckler & Koch
$58.95HK UMP & USC Bolt Catch New HK German lower. Compatible With: HK UMP HK USCHKP-01897$58.95