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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Out Of Stock
HK33, HK53, HK93 Lower Housing - 3 Position SEF 0,1,25 Pictogram - Push Pin
H&K Heckler & Koch
$199.95H&K 93/53/33 (5.56/.223) SEF 3 Position (0,1,25 Pictogram) Housing - Push Pin Upgrade your HK rifle with this premium SEF housing, featuring a 3-position 0,1,25 selector. Designed for precision and reliability, this housing is crafted to fit...HKP-17059$199.95 -
On Sale
HK MP5 Bolt Head, Complete - .40 S&W, 10mm
RCM
Now: $179.95Was: $211.95RCM- US made Bolt Head Complete for HK MP5 40/10 Each bolt head incorporates the same enhanced material as all of the new RCM products. Ideal to replace out of spec, worn or broken bolt heads or for that custom build. Each bolt head will work and fit on...HKP-02664Now: $179.95Was: $211.95 -
Out Of Stock
HK MP5K Trigger Housing - 4 Position Pictogram 0,1,3,F - Clipped and Pinned - 9mm
H&K Heckler & Koch
$468.95H&K MP5K 9mm 4 Position (0,1,3,F Pictogram) Trigger Housing - Clipped & Pinned This HK German MP5K trigger housing, featuring the (0,1,3,F) pictogram, is clipped and pinned for use with semi-auto shelves. Ideal for upgrading your MP5K to a...HKP-00404$468.95 -
Out Of Stock
HK MP5, MP5K Recoil Rod Stop Pin
H&K Heckler & Koch
$14.99HK German MP5 & MP5K Recoil Rod Stop Pin New HK German manufacture a great spare or replacement item to have on hand. Compatible With: MP5, 94, SP5 MP5K, SP89, SP5KClones or other custom buildsHKP-17421$14.99 -
HK MP5F Bolt Carrier - Full Auto - 9mm
H&K Heckler & Koch
$1,949.95H&K MP5F 9mm Full Auto Bolt Carrier This carrier is the latest and greatest MP5 carrier. Will fit all HK MP5 and HK94's or clones semi or full. These are becoming increasingly hard to find. Get them while you can. This is the newer style that has...HKP-00092$1,949.95 -
On Sale
HK MP5K Trigger Group - Super Safety - Push Pin
War Hammer Armaments
$499.95 - $539.95War Hammer Armaments Polymer MP5K Super Safety Lower Receiver - Push Pin War Hammer Super Safety complete lower for MP5K push pin platforms. Constructed of Kevlar and carbon-fiber–infused polymer, this complete lower is engineered for...HKP-22827-M$499.95 - $539.95 -
HK CC9 Magazine Spring - 12 Round
H&K Heckler & Koch
$9.95Heckler and Koch 12-Round Magazine Spring for HK CC9 Genuine 12-round HK CC9 steel magazine spring. Compatible With: HK CC9HKP-22509$9.95 -
On Sale
WOOX Vertical Grip - M-LOK
WOOX
Now: $74.95Was: $88.95WOOX HK Rifle, SMG M-LOK Vertical Grip This M-LOK vertical grip is a compact, ambidextrous foregrip made from American walnut with a reversible dual-wall design (vertical wall AND curved wall) to suit different grip styles. The checkered texture is...HKP-22464Now: $74.95Was: $88.95 -
On Sale
WOOX M-LOK Rail Covers - Teardrop - GEN2
WOOX
$52.95 - $66.95WOOX GEN2 Teardrop M-LOK Rail Covers The teardrop M-LOK rail covers upgrade any M-LOK or KeyMod handguard with a warmer feel, more traction, and added heat protection, while bringing that signature wood look to your build. The GEN2 Teardrop pattern uses...HKP-22462-M$52.95 - $66.95 -
On Sale
Arm Brace Hook
MI Midwest Industries
Now: $82.95Was: $97.95Midwest Industries Arm Brace Hook The Arm Brace Hook is designed for pistols that use a 1.2" diameter buffer tube. It provides a secure and stable point of contact while offering a built-in, ambidextrous QD sling interface. Specifications: Works...HKP-22417Now: $82.95Was: $97.95 -
HK VP9 A1, P30 Magazine - 10 Round
H&K Heckler & Koch
$59.95Heckler and Koch VP9 A1 10-Round Steel Magazine - 9mm Factory steel 10-round magazine for HK VP9 pistols. The A1 magazine is just like the original VP9 magazine but features grooves in the base plate for improved handling. Compatible...HKP-22302$59.95 -
HK VP9A1 K Magazine Replacement Kit
H&K Heckler & Koch
$23.95HK VP9A1K Magazine Replacement Kit Magazine replacement kit with all necessary components: spring, floorplate, and locking plate. Compatible With: HK VP9A1 KHKP-22300$23.95