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 UMP, USC Recoil Buffer
HKP HK Parts
$11.95HKP USC & UMP Recoil Buffer Replaceable spare lower housing or buffer for buffer housings. This is a high wear & replacement item and a must have for spare parts. Compatible With: HK USC .45 HK UMP modelsHKP-18746$11.95 -
HK91, G3 Stock Set - O.D. Green - Surplus
HKP HK Parts
$24.95Original German Army Used Surplus G3, 91, PTR OD Green Stock Set Factory HK German production. Each stock set is used but in perfect working order. Each set is in overall good condition. Most will clean up nicely with a little TLC. A great stock...HKP-16332$24.95 -
HK Rifle Magazine and Receiver Cleaning Brush
H&K Heckler & Koch
$24.95HK Receiver & Magazine Cleaning Brush For All HK's Fits all standard 8-32 US thread cleaning rods. Made and designed for cleaning the HK magazines as well as the upper and lower receivers and mag wells. Works with HK and non-HK applications alike.HKP-00141$24.95 -
HK USP, USP Tactical, USP Expert Complete Recoil Assembly
H&K Heckler & Koch
$94.95H&K HK USP/ Tactical/ Expert Complete Recoil Assembly Brand new factory German manufacture. Compatible With: HK USP 45 Tactical HK USP 45 Expert HK USP 45 Elite Tech Note: The USP Tactical recoil assembly can be used in a standard USP 45 without...HKP-01160$94.95 -
HK P7 PSP, P7M8 Magazine Spring - 9mm - 8 Round
H&K Heckler & Koch
$8.958 Round HK P7 PSP & P7M8 9mm Magazine Spring Compatible With: P7 PSP P7M8HKP-01357$8.95 -
HK G36, SL8 Handguard Rail - Bottom - 6"
HKP HK Parts
$27.95G36 & HK SL8 6" Bottom Rail Fits the SL8 and G36 full-size forearms. This item is just over 6" in overall length and is made from aircraft-grade aluminum. Comes with the screws needed for installation. From the center of the screw holes, there are...HKP-00285$27.95 -
Out Of Stock
B&T APC45, SPC45, GHM45 Magazine - 25 Round
B&T Brugger & Thomet
$145.00B&T .45 ACP 25 Rounds Magazine B&T's APC45 replacement magazines are the same straight-body stick mags that ship with new B&T firearms. These high quality factory magazines hold 25 rounds of .45 ACP ammunition...HKP-17438$145.00 -
HK USP, USPC Bench Mat
HKP HK Parts
$13.95HKP HK Parts Bench Mat for HK USP and HKUSP Compact This isn't your ordinary gun cleaning mat! Show your pride for your firearm while using this high quality neoprene rubber backed and cloth top gun cleaning mat to protect your gun bench, desk, kitchen...HKP-17109$13.95 -
Out Of Stock
HK MP5, HK91, G3, HK33 Optic Mount - Picatinny
B&T Brugger & Thomet
$120.00B&T G3/91, 33/93, MP5/94 - Universal Scope Mount Specifitacions: Color: Black Height max: 35.5 mm Length max: 138 mm Length of top rail: 138 mm Material: Aluminum MSN: 5340-25-149-2979 NATO Accessory Rails: 1 Part number:...HKP-16878$120.00 -
HK45, HK45C, USPC Magazine Floorplate - .45 ACP - 10 Round
H&K Heckler & Koch
$14.95H&K 10 Round HK USPC/45C 45 Magazine Floorplate Each floor plate is the new style rubberized floorplate for enhanced life. A great spare part to have on hand for repair and replacement of parts. This floorplate is commonly called the "elephant foot"...HKP-02210$14.95 -
HK VP40, USP, USPC Extractor Spring
H&K Heckler & Koch
$5.95Heckler and Koch USP/USPC/VP40 Extractor Spring The extractor spring is one of the hardest working parts of your HK pistol. The extractor spring should be changed every 5K rounds. A must-have spare part to have on hand. Compatible With: USP USP9...HKP-01079$5.95 -
HK Locking Washer - Rear Sights
HKP HK Parts
$2.95HKP Rear Sights Locking Washer HK German rear sights toothed locking washer used in perfect working order.HKP-00869$2.95