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 MP5 Rear Sight Set - Dented
H&K Heckler & Koch
$49.99Rear Sight with Hardware - Used Dented - MP5 German HK MP5 rear sight assembly with a dented 4 position drum. Condition will vary. Includes: HK rear sightHKP-19247$49.99 -
HK USPC, P2000 Magazine Housing - .40 S&W - 12 Round
H&K Heckler & Koch
$47.95H&K 12 Round HK P2000/USPC .40 S&W Magazine HousingHKP-16538$47.95 -
G36, SL8 Bolt Head Ejector Pin
H&K Heckler & Koch
$7.95Bolt Head Ejector Pin For G36 & SL8 This item is the pin that holds the ejector & ejector spring in place. It is a common wear and replacement item and a must-have when doing bolt head maintenance.HKP-01876$7.95 -
HK MP5 Parts Kit - 10mm - Pistol
HKP HK Parts
$1,879.95HKP HK Parts HK MP5 Parts Kit - 10mm - Pistol With Flat, Top Rail, and Weldment Set - 10mm HK Parts MP5 Build Kit is the best priced value available anywhere. There is a limited supply and they will...HKP-18409$1,879.95 -
M-LOK QD Sling Mount
Magpul
$27.95Magpul M-LOK QD Sling Mount The M-LOK Quick Detach Sling Mount provides a forward attachment point for the Magpul MS4 Sling and other push-button QD slings. Machined from Mil-Spec anodized aluminum,...HKP-17268$27.95 -
Out Of Stock
HK416, MR556, G36, SL8, B&T APC223 Flash Hider - Suppressor Compatible - Threaded 1/2x28
B&T Brugger & Thomet
$139.99B&T (5.56/.223) Flash Hider - Suppressor Compatible - Threaded 1/2x28 - Universal Elevate the performance of your HK 416 or MR556 with this premium flash hider. Designed for compatibility with a...HKP-21394$139.99 -
HK MP5 Folding Brace - Skeletonized - Swiss
B&T Brugger & Thomet / SB Tactical
$299.95B&T MP5, SP5 Folding Brace - Swiss/USA - Skeletonized Factory Swiss B&T MP5, SP5 folding pistol brace with the SB Tactical/B&T components assembled. A rare offering using the B&T Swiss manufactured...HKP-21052$299.95 -
HK G36 Backplate
H&K Heckler & Koch
$94.99HK G36 Backplate With Recoil Buffer This is a great spare or replacement to have on hand. These are also required for those that are doing the SL8-G36 conversions provided by Tommy Bostic & Chopstix...HKP-01058$94.99 -
HK VP9, VP40 Grip Panel Left Side - Small
H&K Heckler & Koch
$17.95H&K VP9, VP40 Grip Panel Left Side - Small - Black New HK German manufactured. Left side size small perfect for spare or for custom stippling projects. Drop-in part for your HK VP pistol.HKP-16807$17.95 -
HK Mark 23 Firing Pin Spring
H&K Heckler & Koch
$8.95HK Mark 23 Firing Pin Spring Compatible With: HK Mark 23 SOCOMHKP-01627$8.95 -
HK Mark 23 Extractor Spring
H&K Heckler & Koch
$9.95Extractor Spring For HK Mark 23 Or SOCOM Pistol New HK German factory nickel-plated extractor spring. A great spare to have on hand and one of the highest wear and replacement parts on the Mark 23...HKP-01430$9.95 -
HK USPC Night Sights - Tru-Dot - Green
Meprolight
$118.95Meprolight HK USP Compact - Tru-DotNight Sights - Green HK Factory OEM part: 701973 HK uses these as their OEM night sight. Features:HKP-01908$118.95