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 USP Compact Optic Plate - Burris FastFire - Red Dot Pistol Mount
HKP HK Parts
$49.95HKP HK USPC Red Dot Pistol Mount Red Dot mounting plate to allow the use of a Burris Fast Fire, Docter, Vortex Venom or other similar specs Red Dot Sights. Replaces rear sight to allow the mounting...HKP-18899$49.95 -
HK UMP Armorer Manual - 9mm / .40 S&W / .45 ACP
HKP HK Parts
$19.95HK UMP Armorer Manual This is the most in-depth manual available for the UMP series and covers the UMP 45, 40, & 9mm calibers. It has 64 Pages with diagrams and in-depth coverage of the history and...HKP-00612$19.95 -
HK91, G3 Firing Pin - Used
H&K Heckler & Koch
$6.95H&K 91/G3 (7.62x51/.308) Firing Pin - Used Great for spares as this is a common wear item. Compatible With: HK G3 & HK 91, PTR or cloneHKP-16710$6.95 -
HK33, HK93, HK51, HK91, G3 Paddle Magazine Release - Standard
H&K Heckler & Koch
$8.95New Heckler and Koch Paddle Magazine Release This item is a brand new HK German genuine part, not a used or surplus part. It's used for installation on all HK .223 and .308 rifles. Compatible With:HKP-01851$8.95 -
On Sale
HK Universal Angled Fore Grip - M-LOK
Magpul
Now: $23.16Was: $28.95Magpul - M-LOK AFG (Angled Fore Grip) The Magpul M-LOK AFG (Angled Fore Grip) is the result of research and refinements done to the original AFG and AFG-2. By integrating the direct-attach M-LOK...HKP-17267Now: $23.16Was: $28.95 -
On Sale
Compensator Delete Plate - Picatinny Rail
HKP HK Parts
Now: $7.85Was: $18.95HKP Compensator Picatinny Rail Delete Plate The HK Parts compensator picatinny rail delete plate quickly replaces the picatinny rail for a no-snag, sleeker execution. This offering is not compatible...HKP-21317-MNow: $7.85Was: $18.95 -
On Sale
HK UMP Magazine Body - .45 ACP - 25 Round
HKP HK Parts
Now: $27.97Was: $34.95UMP 45 25 Round Magazine Body Only - USA Made New US made UMP .45 cal 25 Round Factory Mag Body. Each magazine body will fit all HK UMP factory firearms as well as the HK USC's that have been...HKP-17020Now: $27.97Was: $34.95 -
HK VP9 Match OR Slide Conversion
H&K Heckler & Koch
$549.00Slide Conversion VP9 Match OR - Complete Elevated Sights The VP9 match optics-ready kit quickly and easily converts a standard VP9 or VP9-B to a competition-ready match optics-ready model. No...HKP-21096$549.00 -
HK MP5 Trigger Group – 2 Round Engraved Binary Housing
HKP HK Parts / FA Franklin Armory
$1,299.95Franklin Armory BFSIII HK-C1/HKP MP5 Trigger Group – 2 Round Engraved Binary Housing - Clipped & Pinned 3 Position, 2 round burst style engraved pictograph – HK binary trigger group. Our latest and...HKP-20969-M$1,299.95 -
On Sale
HK MP5 Folding Stock - .22LR - UMP Style
HKP HK Parts / Heckler & Koch
Now: $224.96Was: $249.95HKP HK Parts and Heckler and Koch UMP Style Folding Stock with HK Parts Stock Adapter for MP5 .22LR New complete MP5 .22lr folding stock with UMP style stock section. Each stock uses a UMP style...HKP-20167Now: $224.96Was: $249.95 -
On Sale
HK416 Trigger - Geissele SSF
Geissele
Now: $463.71Was: $529.95HK416 SSF Trigger- Geissele The Geissele Super Select-Fire (SSF) HK416 trigger is a select-fire combat trigger that Geissele Automatics developed for the U.S. Special Operations Community. The HK416...HKP-16477Now: $463.71Was: $529.95 -
HK33, HK53, HK93 Firing Pin Spring
H&K Heckler & Koch
$9.95New HK German 93, 33, & 53 .223/5.56 Firing Pin Spring. A must-have spare part as this is a high wear and replacement item. Compatible With: HK93, 33, 53HKP-00193$9.95