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
HK G36, SL8 Aftermarket Side Rail - Left or Right
HKP HK Parts
Now: $16.54Was: $25.95G36 & HK SL8 Aftermarket Side Rail Left Or RightHKP-00286Now: $16.54Was: $25.95 -
HK UMP, USC, G36, SL8 Sear
H&K Heckler & Koch
$29.95HK Complete Sear G36, UMP, USC & SL8 Genuine German Heckler & Koch part. Compatible With: HK UMPHKP-01850$29.95 -
HK UMP Magazine Floorplate
H&K Heckler & Koch
$9.95HK Heckler and Koch German Magazine Floorplate for All HK UMP Magazines Compatible With: UMP .45 UMP .40 UMP 9mmHKP-16493$9.95 -
HK21E, HK11E Extractor Spring
H&K Heckler & Koch
$24.95HK21E & 11E Factory Extractor Spring Made by HK Germany for all HK21E's and 11E's.HKP-00815$24.95 -
On Sale
HK33, HK53, HK93 Bolt Head, Complete
RCM
Now: $193.46Was: $214.95HK 93, 33, 53 .223/5.56 Bolt Head Complete - US The latest generation style bolt head with oval shaped roller retainer plate. Perfect for 556/ .223 & 300 BLK HK or roller lock firearms. Includes:HKP-16722Now: $193.46Was: $214.95 -
HK Front Sight Blade
H&K Heckler & Koch
$11.95H&K Front Sight Blade New Factory HK manufactured. This is compatible with all HK front sight towers & triple frames.HKP-00370$11.95 -
HK MP5K 0,1,3 Burst Trigger Housing or Frame
H&K Heckler & Koch
$224.95MP5K & SP89 Ambidextrous Grip Frame, Trigger Housing marked with the safe, semi & 3rd burst options only (3 position burst only housing). A Genuine Heckler and Koch part. This housing is made for...HKP-01684$224.95 -
HK UMP 30 Round .40 Magazine - LEO Marked
H&K Heckler & Koch
$64.9530 Round Magazine - LEO Marked - Used - UMP .40 S/W Each 30 round magazine will fit all HK UMP .40 caliber carbines, SMG's as well as the USC-UMP .40 caliber conversions. Used in good condition. The...HKP-20651$64.95 -
Out Of Stock
HK MP5, HK94 Folding Stock With Adapter - UMP Style
USA
$249.95HK MP5, HK94 Folding Stock With Adapter - UMP Style New US UMP style folding stock assembled with our own HK Parts stock adapter. Our HK Parts stock adapter was made from a solid billet of CNC...HKP-20215$249.95 -
HK 2 Round HK SLB 2000 30-06 Magazine
H&K Heckler & Koch
$29.95HK SLB 2000 30-06 2 Round MagHKP-16997$29.95 -
HK USP Slide Release Lever
H&K Heckler & Koch
$59.95HK USP Slide Release Lever Compatible With All USP Full Size Pistols & All USP Full Size Variants Below: USP 45 USP 40HKP-01674$59.95 -
HK417, MR762 Rear Diopter Sight
H&K Heckler & Koch
$139.95H&K HK MR762/417 Rear Diopter Sight Specifications: Fits: 12", 16.5", 17", & 20" barrel lengths. Compatible With: <HKP-02547$139.95