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 USP Full Size Floorplate - 9mm and .40 S&W
H&K Heckler & Koch
$23.95Heckler and Koch HK USP Full Size 9mm/.40 S&W Floor Plate Compatible With: HK USP 9mm 15-Round Magazine HK USP 40 S&W 13-Round MagazinHKP-01438$23.95 -
HK UMP, USC Cocking Lever
H&K Heckler & Koch
$25.95HK UMP & USC Cocking Lever New HK German part. Compatible With: HK UMP HK USCHKP-01884$25.95 -
HK91, G3 Lower, Complete - SEF Full Auto - Surplus
H&K Heckler & Koch
$369.95Heckler and Koch German Surplus Complete Lower with the Black Grip for HK G3 HK G3 SEF Steel Lower Complete. Each lower includes a full auto completeHKP-17653$369.95 -
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...HKP-16268$13.95 -
HK53 Locking Piece #3 - 58 Degree
RCM
$49.99RCM HK 53 Locking Piece #3 - 58 Degree This is the proper locking piece for the HK33K and HK53 firearms as well as some HK51 builds.HKP-02523$49.99 -
HK MP5, HK94 Operator's Manual
HKP HK Parts
$14.95HKP MP5, 94 Operator's Manual The MP5, 94 or other HK MP5 clones Operator Manual is 36 pages of a page by page translation of the original Bundeswehr ( German Federal Army) instruction manual for...HKP-15765$14.95 -
Out Of Stock
HK91, G3 Barrel - 7.62 / .308 - 17.7" - Threaded 15x1 RH
RCM
$264.95RCM HK G3/91 (7.62x51/.308) Barrel - Threaded 15x1 RH Made by RCM to the highest tolerances and finest material available. Perfect for that HK build or to replace that shot-out barrel. Each barrel...HKP-01136$264.95 -
HK91, G3, PTR Handguard - M-LOK
MI Midwest Industries
$189.95MI HK G3/91/PTR M-LOK Forearm Fits the HK G3, 91 lengths for firearms to include the full-length PTR models that use a G3/91 full-length forearm. May fit some CETME models such as the C308 with...HKP-18439$189.95 -
HK MP5, HK33, HK53, HK93, HK91, G3 Catch with Roller for SEF, Navy Trigger Packs - USED
H&K Heckler & Koch
$4.49Friction Sear-USED For SEF, Navy Trigger Packs hk335393, 91, G3, Used in excellent condition, HK German Friction Sear for SEF & Navy trigger packs. This item is also referred to as the catch with...HKP-16197$4.49 -
Cleaning Brush Rod
H&K Heckler & Koch
$19.95H&K Cleaning Rod For HK Cleaning Brushes HK chamber face brush, Receiver Brush, Flute Cleaning Brush Cleaning Rod For All US Threaded cleaning Brushes (8-32 thread type). This rod is an aluminum rod...HKP-01821$19.95 -
On Sale
HK91, G3, HK33, HK53, HK93 Bayonet Adapter - Hardware Included - USED
H&K Heckler & Koch
Now: $119.95Was: $149.95Heckler and Koch German Bayonet Adapter with Screw and Hardware - USED USED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALESHKP-00021-USEDNow: $119.95Was: $149.95 -
HK VP9SK, P30SK Magazine - 9mm - 14 Round - Floorplate with Pinky Rest
HKP HK Parts / Heckler & Koch
$69.95HK VP9SK & P30SK 9mm – 14 Round Magazine New German VP9SK/P30SK HK manufacture 10 round magazine body, follower, spring, locking plate combined with the HK Parts +2 magazine extension installed &...HKP-20888$69.95