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 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 -
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 -
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 -
HK UMP Magazine Body - .45 ACP - 25 Round
HKP HK Parts
$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-17020$34.95 -
Out Of Stock
HK MP5, HK94 Modular Handguard-M-LOK
DTAC Dakota Tactical
$165.95DTAC MP5, HK94 Modular Handguard - M-LOK Features: Made in the USA (922r compliant part) M-LOK accesHKP-17806$165.95 -
Out Of Stock
B&T Vertical Foregrip - Short Style - Quick Detach - Coyote Tan
B&T Brugger & Thomet
$75.00B&T Short Style Quick Detach Vertical Grip - Coyote Tan Swiss made B&T quick detach short vertical for-end grip with quick release throw lever for picatinny. Made of tan polymer and includes a water...HKP-18041$75.00 -
HK MP5 Folding Stock - .22LR - UMP Style
HKP HK Parts / Heckler & Koch
$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-20167$249.95 -
Out Of Stock
HK MP5K Picatinny End Plate Adapter
MI Midwest Industries
$89.95MI HK MP5K 1913 Picatinny End Plate Adapter The Midwest Industries Picatinny end plate adapter opens up a myriad of off-the-shelf stock and brace options. The adapter installs in the same manner as...HKP-21584$89.95 -
HK416 Trigger - Geissele SSF
Geissele
$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-16477$529.95 -
HK91, G3 Locking Piece - 45 Degree
H&K Heckler & Koch
$29.95Heckler and Koch New Old Stock German HK Locking Piece for G3, 91, and PTR This is the factory-correct 45-degree locking piece for HK 91/G3 and PTR .308 full-length firearms. All steel construction...HKP-00499$29.95 -
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 -
HK MP5, HK416 Barrel - .22LR - 8.5" - Threaded 8x.75
RCM
$229.95RCM HK MP5 / 416 .22LR Pistol Barrel The first and only replacement barrel for the HK .22LR platforms—this is a game-changer! Previously, replacing the barrel meant the hassle of sending the receiver...HKP-21403$229.95