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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HK45, HK45 Compact, HK USP Series V7 LEM Hammer Axle
H&K Heckler & Koch
$49.95HK USP Series/45/45C V7 LEM Hammer Axle Compatible With: HK USP 45 HK USP 40<HKP-01929$49.95 -
HK45, HK45 Compact, HK USP, USP Compact LEM Cocking Piece
H&K Heckler & Koch
$69.95HK USP/USPC/45/45C LEM Cocking Piece Compatible With All The Following LEM Models: USP Full Size USP CompactsHKP-02509$69.95 -
Out Of Stock
HK USPC Magazine - 10 Round - .357 SIG - Flat Floorplate
H&K Heckler & Koch
$49.00HK USP Compact 357 10 Round Magazine With Flat FloorplateHKP-02363$49.00 -
HK G36 Picatinny Evaluation Adapter
H&K Heckler & Koch
$59.95HK G36 Picatinny Evaluation Adapter Picatinny Evaluation Adapter for Carry Handle and Sight Rail. Includes all mounting hardware. Compatible With: G36 G36KHKP-18779$59.95On Sale
HK G36, SL8 Optic Mount, Carry Handles
B&T Brugger & Thomet
Now: $125.96Was: $139.95B&T HK G36/SL8 Optic Mounting Rail B&T optic mounting rail for HK G36, SL8 HK carry handles, Spanish Military version. Specifications: Height: 23.7 mmHKP-16867Now: $125.96Was: $139.95Out Of Stock
HK UMP Birdcage Flash Hider
HDPS
$154.95HDPS HK UMP (.40 S&W/.45 ACP) Birdcage Flash Hider This part is made to fit all US-made or German HK-flanged style barrels. HK no longer makes a flash hider for the UMP Subgun. This is the much...HKP-02694$154.95
HK UMP, USC Hammer Spring - Right
H&K Heckler & Koch
$14.95HK UMP & USC Right Side Hammer Spring For LowersHKP-01892$14.95Out Of Stock
$4.95On Sale
HK91, G3 Bolt Head - Stripped
Now: $87.26Was: $96.95New US Made Bolt Head- Incomplete: CNC machined from HK blueprints to precise tolerances that use the proper steel and heat-treat processes. You WILL NOT find a better quality offering of HK Parts...HKP-16636Now: $87.26Was: $96.95
HK Fixed Buttstock Buttpad - Alpine Green
H&K Heckler & Koch
$79.95H&K Fixed Stock Buttpad - Alpine Green Perfect for A2 G3, 91, PTR91 & HK33, 53, 93 fixed stocks. This is a factory German brand new in HK wrapping German part.HKP-17027$79.95
HK MP5 Trigger Pack SEF - Semi-Auto - .40 S&W, 10mm
H&K Heckler & Koch
$269.95HK Parts and Heckler and Koch MP5 10mm and .40 S&W Semi-Auto SEF Complete Trigger Pack We have one of the best HK gunsmiths in the country who can take German HK F/A trigger packs and modify them to...HKP-00979$269.95Out Of Stock
HK MP5K, SP89 Trigger Group - 9mm - 2 Position - Housing 0,1
HKP HK Parts
$0.00HKP/H&K MP5K/SP89 9mm Safe & Semi Only Trigger Group - Clipped & Pinned Introducing a cost-effective alternative to the rare and expensive all-German HK FBI or 0,1 ambidextrous trigger group, now...HKP-17241$0.00