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 Match SCS Slide Kit
H&K Heckler & Koch
$755.00H&K VP9 Match SCS Slide Kit Upgrade your VP9 with precision and performance using the H&K VP9 Match SCS Slide Kit. This factory upgrade includes a precision-machined match slide, extended barrel, and lightening cuts for improved balance and...HKP-21911$755.00 -
HK MP5, SP5K Optic Mount with Aimpoint ACRO P-2
HKP HK Parts / Aimpoint
$689.95HK MP5 Aimpoint ACRO P-2 with HKP Optic Mount The HKP optic mount securely positions the ACRO P-2 sight for fast, intuitive target acquisition, while preserving a clear view of the factory sights. Includes: HK MP5 Optic Mount (ACRO interface) Aimpoint...HKP-21899-M$689.95 -
HK VP9SK, P30SK +5 Magazine Extension Kit
HKP HK Parts
$34.95Magazine Extension Kit +5 - HK VP9SK, HK P30SK HK Parts magazine extension kit adds 5 additional rounds to the HK VP9SK/P30SK magazine with the simple swap of the floor plate & high-reliability mag spring. HKP highly recommends using a magazine...HKP-20566-M$34.95 -
HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A3
Nefarious Arms
$594.95Nefarious Arms HK 416/MR556 10.4" A3 Barrel ***THE BARREL EXTENSION RIM IS MARKED "HAUS" DUE TO AN ERROR BY THE BARREL EXTENSION SUPPLIER. THE MARKING IS NOT VISIBLE ONCE INSTALLED. THESE BARRELS ARE GENUINE NEFARIOUS BARRELS AS NEFARIOUS...HKP-21335$594.95 -
On Sale
HK33 Cocking Tube - 11" - Right Hand
HKP HK Parts
Now: $74.95Was: $99.95HKP HK33 11" Right Hand Cocking Tube This is the one and only right handed cocking tube for the HK33 cocking tube made in the US. Made to the exact HK specifications as the factory HK33 German cocking tube. Overall length is 11".HKP-18692Now: $74.95Was: $99.95 -
HK MP5K Ace Style Stock
HKP HK Parts
$164.95HKP HK MP5K Ace Style Stock MP5K billet ace adapter paired with an all-steel ace-style stock.HKP-20953$164.95 -
HK93 Trunnion
RCM
$65.00RCM HK93 Trunnion Made to exact factory HK specifications for the HK93, HK33 type builds. These are the best trunnions of their kind on the market. Machined to HK spec making the install painless and hassle free. The way a custom HK build it should...HKP-20807$65.00 -
Out Of Stock
HK G36, SL8 Handguard - Quad Rail
B&T Brugger & Thomet
$379.95B&T Brugger and Thomet Handguard Quad Rail For HK G36 and SL8 New B&T Swiss manufactured G36 and SL8 quad rail system. Each unit comes with the complete quad rail as well as the rail covers and sling swivel for a sling. Compatible...HKP-16897$379.95 -
HK VP9 Magazine - 9mm - 20 Round
Strike Industries
$69.95Strike Industries 20 Round HK VP9 9mm Magazine Strike Industries +5 magazine extension coupled with a 15 round factory German magazine body adds 5 additional rounds total for a fully assembled 20 round HK VP9. Each mag comes fully assembled and...HKP-19628$69.95 -
HK45 Compact, HK45C Tactical Compensator - Quick Detach
HKP HK Parts
$149.95HK45C, HK45C Tactical - Comp Weight™ Quick Detach Compensator Compatible With: HK45C Tactical HK45C Specifications: Length - 4 1/4 inches Height - 1 7/8 inches Width - 1 3/8 inches Weight - 3.3 oz Torque: 3nM / 26 inch-lbs Attaches to the frame...HKP-18293$149.95 -
Out Of Stock
HK P7 PSP, P7M8 Magazine Floorplate - 9mm - 8 Round
H&K Heckler & Koch
$11.95HK P7 PSP/P7M8 Magazine Floorplate New HK German manufacture. Compatible With: PSP P7M8HKP-01330$11.95 -
HK USP Raised Tactical Front Sight
H&K Heckler & Koch
$29.95H&K HK USP Raised Tactical Front Sight Compatible With: USP 9mm USP .40 USP .45 USP Tactical models USP Expert modelsHKP-01403$29.95