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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On Sale
HKP Shirt - Short Sleeve - OD Green
HKP HK Parts
Now: $11.95Was: $14.95HKP Short Sleeve Shirt - OD Green Get your hands on some of our premium new apparel! Featuring our sleek new logo printed over soft cotton, this shirt is certain to catch an eye at the range! Unisex...HKP-21023-MNow: $11.95Was: $14.95 -
HK33 Slimline Handguard
H&K Heckler & Koch
$59.95H&K HK HK33 Slimline Forearm Used German military surplus black cerakote slimline forearm cut down to fit the HK33. These are rare items only offered here at HK Parts. Each item is in good to...HKP-20273-M$59.95 -
HK VP9, VP9SK, VP40 Trigger Bar
H&K Heckler & Koch
$55.95H&K HK VP9/VP9SK, HK VP40 Trigger Bar Compatible With: HK VP9 HK VP9SKHKP-16780$55.95 -
HK VP9 Series Magazine Catch
H&K Heckler & Koch
$24.95Heckler and Koch Magazine Catch for HK VP9 and HK VP40 New HK German manufacture. Compatible With: VP9HKP-16817$24.95 -
HK45, P30, P30L, P30SK Magazine Release
H&K Heckler & Koch
$15.95Heckler and Koch Magazine Release for HK45 and HK P30 Compatible With: HK45 HK45 TacticalHKP-01809$15.95 -
HK416A5, MR556 Selector Lever Set, Complete - Ambi - RAL8000
H&K Heckler & Koch
$189.95Heckler and Koch Ambidextrous Selector Lever Set Complete for HK416A5 SEMI and HK MR556 - RAL 8000 New HK German manufacture. Complete kit to upgrade the selector lever set on the HK MR556 to thHKP-17603$189.95 -
HK UMP, USC Recoil Rod Assembly, Complete
H&K Heckler & Koch
$79.95HK USC/UMP 45/40/9mm Recoil Spring/Rod Assembly New HK German. This is great to have as a spare as this is a repair and replacement item. Compatible With: HK UMP 45HKP-00610$79.95 -
HK MP5 Magazine Floorplate - .40 S&W, 10mm - US
HKP HK Parts
$9.95HKP HK Parts Magazine Floor Plate for HK MP5 40,10 Great for spare parts and also a much needed US made compliant part for U.S. compliance.HKP-16507$9.95 -
HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - H&K
H&K Heckler & Koch
$99.95HK Factory German MP5K, SP-89, & SP5K End Cap With Sling Swivel Each pistol end cap is OEM HK German MP5K and MP5K-N and has the HK German factory buffer. Compatible With: MP5KHKP-00394$99.95 -
On Sale
HK MP5, SP5 3 Lug Adapter - Threaded 1/2x32
HKP HK Parts
Now: $22.46Was: $49.95HKP 3-Lug Adapter - Threaded 1/2x32 The HK 3-Lug Adapter, internally threaded with 1/2x32 threads, can easily attach to any existing 1/2x32 threaded parts. This is the finest machined adapter on the...HKP-00107Now: $22.46Was: $49.95 -
HK90 Series Compression Rod for Burst Trigger Packs
H&K Heckler & Koch
$29.95H&K 90 Series Burst Trigger Pack Compression Rod This is an HK German factory part that is found in all HK burst trigger packs. This part, along with the compression rod spring, is the number one...HKP-01047$29.95 -
Out Of Stock
HK MR556 A4 Upper Receiver Kit - 11"- M-LOK
H&K Heckler & Koch
$1,998.95H&K Heckler & Koch MR556 Upper Receiver Kit A4 -11″ - M-LOK This kit includes a complete upper receiver/barrel assembly, allowing Mil-Spec 5.56mm AR-style rifles to be retrofitted to HK’s piston and...HKP-21910$1,998.95