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
HK USC (.45 ACP) Incomplete Trigger Housing - Used
H&K Heckler & Koch
$39.95H&K USC (.45 ACP) Incomplete Trigger Housing - Used Used HK German USC Lower Receiver Empty. German HK perfect for spare parts. You can choose gray or black. We have both types 1. Please be sure to make a note of which color you want when checking...HKP-16479$39.95 -
Out Of Stock
HK21E Cartridge Guide
H&K Heckler & Koch
$995.95HK German 21E Cartridge Guide - Complete New old stock HK German .308 HK21E feed mech cartridge guide.HKP-02431$995.95 -
HK23E Ammunition Belt Box - 5.56 / .223 - US
Michaels Machines
$599.95HK23E & MM23E Belt Box Brand new HK23E, MM23E US made feed box. The German units have long since been out of production. These are exact copies of the German units. Made in the USA. Compatible With: MM23E HK23EHKP-17579$599.95 -
Out Of Stock
HK PSG1, MSG90 Bolt Carrier
H&K Heckler & Koch
$999.95HK German MSG90/PSG1 Bolt Carrier. Rare and hard to find. Now restricted by HK and will only become harder to find.HKP-00538$999.95 -
Out Of Stock
HK G3K, 51 Rear Sight Drum - 7.62 / .308
H&K Heckler & Koch
$104.95HK German G3K, HK51, SL6, & SL7 Rear Sight Drum Hard to find and no longer made or imported. Compatible With: G3K HK51 SL6 SL7HKP-02049$104.95 -
PTR PDW Bolt Carrier - Semi Auto - 7.62x39 and 7.62x51
PTR
$229.95PTR PDW Semi Auto Carrier - US Made Semi-automatic bolt carrier manufactured by PTR in the United States using HK-pattern specifications. Designed for PTR PDW platforms and counts as one U.S.-made 922r compliant component. Compatible with both 7.62x51mm,...HKP-14140$229.95 -
HK91, G3 Complete Bolt Head - Used
H&K Heckler & Koch
$179.95German HK G3 & HK 91 & PTR Bolt Head Complete - Used German "IC" Date Coded Made On HK tooling & prints in Germany in 1983 . Each used bolt head is complete with all parts installed & 100% functional. Taken from live demilled German HK G3...HKP-00206$179.95 -
HK91, G3 Trigger Housing - 4 Position (0,1,3,F Pictogram) Double Tang - Clipped & Pinned
H&K Heckler & Koch
$534.95H&K G3/91/PTR (7.62x51/.308) 4 Position (0,1,3,F Pictogram) Double Tang Trigger Housing- Clipped & Pinned This ambidextrous HK trigger housing features a 4 position pictogram (0,1,3,F) and is set up in a semi-auto clipped & pinned...HKP-01515$534.95 -
HK33, HK53 Picatinny Rail for Barrel Shroud
H&K Heckler & Koch
$199.95HK Picatinny Rail for HK33, HK 53 Barrel Shroud The Picatinny rail mounts directly onto the HK33, and HK53 barrel shroud, providing extra space for attaching accessories. Compatible with: HK33 HK53 In-spec. clones and custom buildsHKP-18993$199.95 -
Out Of Stock
HK33, HK91, G3 Steel Bipod - Surplus
H&K Heckler & Koch
$349.95H&K 33/91/93/G3 Steel Bipod - Surplus - For Use With The HK Wide Forearm. Genuine surplus HK factory bipod. These bipods have long been out of production from HK. Bipods are only compatible with the wide forearm with integrated stowage grooves...HKP-00215$349.95 -
Out Of Stock
HK33, HK53, HK93, HK91, G3 1200 Meter Rear Sight - 3rd Generation
H&K Heckler & Koch
$0.00HK German 3rd Gen 1200 Meter Rear Sight. New HK German Manufacture. No longer in productionHKP-00561$0.00 -
Out Of Stock
HK33, HK53, HK93 4 Position Trigger Group Complete (0,1,3,F) - Used
H&K Heckler & Koch
$2,645.95Used HK 93/33/53 4 Position Trigger Group Complete (0,1,3,F). Factory German Push Pin HK Trigger Group.HKP-02065$2,645.95