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 G3 Parts Kit - FMP - HK Contract
H&K Heckler & Koch
$299.95Heckler and Koch Contract Portuguese FMP Surplus Parts Kit for HK G3 7.62 X 51mm / .308 Each parts kit comes complete with all parts from a functional HK G3 full auto rifle that was demilled into a...HKP-17694$299.95 -
HK91, G3, PTR TWO Magazines with Cloth Mag Pouch - 20 round
H&K Heckler & Koch
$49.95H&K 91/G3/MSG90 (7.62x51/.308) 2x20 Round Aluminum Mags W/ Cloth Mag Pouch 2 X New/like new HK German 20 round aluminum magazine with green cloth mag pouch combo deal: 2 X 20 round aluminum...HKP-15792$49.95 -
Ambi Trigger Pack - Semi Auto 0,1 - 9mm - Flat Trigger - US Made 922r Parts
HKP HK Parts
$349.95Ambidextrius Trigger Pack with Flat Trigger For MP5, HK94 - 4 US 922R Compliant Parts HK MP5/94 9mm Semi Auto Trigger Pack complete with Flat Trigger installed. Assembled and ready install on your...HKP-18512$349.95 -
HK UMP, USC Recoil Rod Spring - Enhanced
HKP HK Parts
$11.95HKP Enhanced Recoil Rod Spring for HK UMP, USC Upgrade or replace your UMP recoil system with HKP's enhanced heavy recoil rod spring from HK Parts. This spring is approximately 10 percent stronger...HKP-22507$11.95 -
HK MP5, AP5 Magazine Spring - 30 Round
MKE
$5.95MKE 30 round magazine spring for HK MP5- Turkey The MP5 30-round spring is a must-have replacement spring for all HK MP5 curved magazines. Compatible With: MP5, MP5KHKP-22473$5.95 -
HK45, USP Magazine Spring - Extended
HKP HK Parts
$11.95HK45/USP Extended Magazine Spring .45 ACP Replacement spring for +7 and +10 HK Parts magazine extensions. Compatible With: HK45/HK45 Compact HKHKP-22299$11.95 -
HK CC9 Backstrap - Large
H&K Heckler & Koch
$13.95H&K CC9 Large Backstrap Made in Germany by H&K, this CC9 large backstrap provides a larger grip profile for a custom fit.HKP-22109$13.95 -
Out Of Stock
HK416, MR556, MR762 Snap Hook Adapter for Slimline Buttstocks - Ambi
H&K Heckler & Koch
$177.95H&K MR556/MR762 Ambi Slimline Buttstock Snap Hook Adapter Genuine H&K snap hook adapter designed to provide ambidextrous sling attachment points for MR556 and MR762 slimline buttstocks. Compatible...HKP-22100$177.95 -
HK417, MR762 Takedown Pin - Front - A4 Style
H&K Heckler & Koch
$43.99H&K MR762 A4 Receiver Front Takedown Pin German-made factory pivot pin for the MR762 A4. Will work with A1 models as well.HKP-21958$43.99 -
Century Arms AP51 A3 Telescopic Stock
MKE
$449.95MKE Century Arms AP51 A3 Telescopic Stock Factory new MKE stock professionally converted to fit the AP51 rifles and pistols. This AP51 stock was modified to the correct length recoil rod to make it...HKP-21926$449.95 -
B&T GHM9 SD Handguard
B&T Brugger & Thomet
$255.00B&T GHM9 SD Handguard Upgrade your GHM9 SD with this precision-engineered handguard from B&T, designed specifically for the integrally suppressed GHM9 SD platform. This handguard features M-LOK...HKP-21739$255.00 -
B&T Telescopic Stock End Cap
B&T Brugger & Thomet
$8.95B&T Telescopic Stock End Cap B&T replacement end cap for telescopic stocks. Limits the extension of the stock to keep it from sliding out of the guides.HKP-21721$8.95