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 VP9, P40 Backstrap - Small
H&K Heckler & Koch
$29.95Heckler and Koch Small Black Backstrap for HK VP9, HK VP40 New HK German manufacture. Compatible With: VP9 VP40 VP9F VP9KHKP-16814$29.95 -
HK VP9, VP9SK, VP40 Sear Spring
H&K Heckler & Koch
$9.95H&K VP9/VP9SK, VP40 Catch Pressure Spring Compatible With: HK VP9 HK VP9SK HK VP9A1 F, VP9A1 K HK VP40HKP-16800$9.95 -
Out Of Stock
HK45 Tactical Barrel - .45 ACP - 5.15" - Threaded .578x28 RH
RCM
$250.00RCM HK45 .45 ACP Tactical Barrel - Threaded .578x28 RH HK45 & HK45 Tactical threaded barrel compatible with a variety of flash hiders and sound suppressors. Unlike the factory HK45 Tactical barrel, which has a metric 16x1 LH thread, this barrel...HKP-17446$250.00 -
HK45, HK45 Compact, USP Trigger Bar Detent
H&K Heckler & Koch
$5.95Trigger Bar Detent Compatible With: HK45, HK45 Tactical HK45C, HK45C Tactical HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .357 SIG HK USP Compact .45 ACP All USP Tactical, Elite & Expert...HKP-01922$5.95 -
HK91, G3 2x20 Mag Pouch - Flectarn - New
H&K Heckler & Koch
$13.95New HK German Camo Mag Pouch New Flectarn Camo Magazine Pouch Fits 2 X 20 Round Magazines. New latest issue German dual mag pouch. Holds two 20 round magazines that attaches to German web gear. Each unit comes in the new style German forest flectarn camo...HKP-16268$13.95 -
HK P30L Lightcomp™
HKP HK Parts
$387.95HKP P30L Lightcomp™ (Patent Pending) Traditionally, adding a compensator and a weapon light to your pistol would require purchasing the light and the comp. In a perfect world, that combo would optimally locate the weapon light switches for...HKP-21427$387.95 -
B&T TP9, MP9, KH9, P26 Folding Stock Assembly, Complete
B&T Brugger & Thomet
$190.00B&T TP9, MP9, KH9, P26 Folding Stock Assembly, Complete Swiss B&T manufactured Tactical Folding Stock Assembly for the TP9, MP9, KH9 & P26. Includes: Main stock assembly (BT-30234) Folding stock axle (BT-30116) Release button...HKP-17298$190.00 -
HK USP Full Size Floorplate - 9mm and .40 S&W
H&K Heckler & Koch
$8.95HK USP Full Size 9mm/.40 S&W Floor Plate Compatible With: HK USP 9mm 15-Round Magazine HK USP 40 S&W 13-Round MagazineHKP-01438$8.95 -
HK416, MR556 Flash Hider - Threaded 1/2x28 - German
H&K Heckler & Koch
$19.95H&K Heckler and Koch 5.56 / .223 Flash Hider - Threaded 1/2x28 This flash hider is threaded 1/2x28 for use on all HK416, HK MR556, and other AR-style applications. It is a great flash hider to use to upgrade the MR556 barrel. Specifications: Made in...HKP-01404$19.95 -
Out Of Stock
HK UMP, USC Cocking Lever
H&K Heckler & Koch
$24.95HK UMP & USC Cocking Lever New HK German part. Compatible With: HK UMP HK USCHKP-01884$24.95 -
HK MP5 Magazine Locking Plate - 9mm - Red
HKP HK Parts
$7.95HKP HK MP5, MP5K 9mm Magazine Locking Plate - HK Red Teflon infused glass filled polymer red colored locking plate that will work with all HK MP5, MP5K 9mm curved magazines. A drop in item that allows you to swap the locking plate to a red unit. A great...HKP-18303$7.95 -
HK Ambidextrous Sling Pin Locking Knob
H&K Heckler & Koch
$11.95New HK German Ambidextrous Sling Pin Locking Knob These are common replacement items, they can become loose as the O-ring wears and falls off. Be sure to order extra O-rings to avoid losing the locking nut. This is a common replacement part for those...HKP-01042$11.95