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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
HK MP5 Bolt Carrier - Full Auto - 9mm
RCM
$146.95MP5 9mm Full Auto Bolt Carrier - RCM New US RCM manufactured MP5, 94 F/A carrier with all current "F" style upgrades and tungsten filled for the best performance and the utmost reliability. They were machined completely from billet ordnance grade steel...$146.95 -
HK90 Series Magazine Catch Spring
H&K Heckler & Koch
$4.95Heckler and Koch Magazine Catch Spring for the HK90 Rifle Series New HK German manufacture, not used, worn out surplus springs. Perfect spare and a must-have mag catch spring for all 90 series rifles that use a detachable magazine. Compatible...$4.95 -
HKP 9mm Micro Comp - Threaded 13.5x1 LH
HKP HK Parts
$29.95HKP 9mm Micro Comp - Threaded 13.5x1 LH This lightweight micro comp functional as both a compensator and thread protector. The HK Parts Micro Comp easily attaches to the end of any factory spec 13.5x1 9mm barrel. It was developed to provide concealed...$29.95 -
HK91, G3 20 Round Magazine - Steel - Excellent
H&K Heckler & Koch
$36.95HK German 20 Round Steel Magazine - Very Good To Excellent Shape Each magazine in this offering is the best of the used steel surplus magazines available, features the best finish, and has the lowest amount of wear possible. No longer in production,...$36.95 -
HK MP5, SP5K, SP89, Optic Mount Bundle - Holosun Reflex X2
Holosun
$394.95Holosun X2 - Red 2 MOA Dot & 32 MOA Circle - Optic Mount - Bundle - HK MP5 Includes: (1) Holosun Reflex X2 MRS Red Solar (1) MP5 RMR Optic Mount The finest mounting solution to properly mount your RDS on your MP5 or any other receiver that...$394.95 -
HKP UMP/USC (.40 S&W/.45 ACP/9mm) Side, Bottom Rail With Hardware
UTG
$24.95UMP, USC Side, Bottom Rail With Mounting Hardware - Aluminum Listing is for one rail. The UMP/USC can use up to 3 of the rails on the forearm section of the firearm. 1 each for the sides and 1 for the bottom for a total of 3 rails. Each rail is made from...$24.95 -
HK 30 Round HK MP7 4.6x30mm Magazine
H&K Heckler & Koch
$67.99MP7 30 Round Magazine New factory German HK 30-round magazine for the 4.6x30mm HK MP7A1 & MP7A2 weapon system. This is a popular spare magazine option as it is not too large and not too small of capacity.$67.99 -
HK VP9 Optic Plate #5 - Burris Fastfire, Vortex Viper, Venom - Red Dot Pistol Mount
HKP HK Parts
$29.95 - $39.95HKP/H&K VP9 Series 9mm Fastfire, Vortex Optics Plate #5 The finest aluminum mounting solution for your HK VP9 Series Optic Ready model. New solid billet machined aluminum optics plate. Each plate is CNC machined from a solid billet of ordnance grade...$29.95 - $39.95 -
HK VP9SK, P30SK Magazine - 9mm - 10 Round - Extended Finger Rest - Red Follower
H&K Heckler & Koch
$49.95HK VP9SK & P30SK 9mm - 10 Round Magazine with Rubberized Extended Finger Rest - Red Follower New German HK manufacture 10 Round 9mm P30SK, VP9SK magazine with factory HK rubberized pinky extension. Compatible With: HK VP9SK HK P30SK This mag comes...$49.95 -
HK MP5SD Barrel Shroud - Enhanced
HKP HK Parts
$129.95HKP MP5SD weldable suppressor shroud for HK MP5 SD builds The HKP SD shroud is fully de-burred with the handguard attachment lugs being machined in from the outset, not welded, which is commonly found in aftermarket-style shrouds. Specifications: Made...$129.95 -
HK MP5K, SP89, SP5K Vertical Foregrip VFG - M-LOK Rail
H&K Heckler & Koch
$114.95H&K MP5K Vertical Grip VFG M-LOK Rail New VFG for the MP5K platform is now M-LOK compatible. The perfect combination to install lights or lasers. M-LOK slots are integrated on both sides to make it a true ambidextrous vertical grip. Compatible...$114.95 -
HK416, MR556 - Spring - Enhanced Buffer
H&K Heckler & Koch
$19.95Enhanced HK German MR556 & 416 Buffer Spring The HK MR556/416 buffer spring will also work with other AR-15 and M-16 rifles. It is a high-wear item and a must-have replacement part. Compatible With: HK MR556 HK416 HK416 A5 HK M27 AR15, M4 & M16$19.95