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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Out Of Stock
HK USP9 Compact Recoil Spring with Captive Spring
H&K Heckler & Koch
$113.95Heckler and Koch Recoil Spring with Buffer Assembly Complete or USP Compact 9mm Great spare or replacement item to have as a spare. This is the new factory part for all HK USP9C Pistols.HKP-01158$113.95 -
HK416, MR556, MR762 Trigger Guard Assembly
H&K Heckler & Koch
$52.95H&K HK MR556/MR762/416 Trigger Guard Assembly New HK German part that protects the trigger from an accidental discharge. Compatible With: HK MR556 HK 416HKP-02545$52.95 -
HK91, G3, HK33, HK53, HK93 Paddle Mag Release Contact Piece
H&K Heckler & Koch
$29.95Heckler and Koch Contact Piece for Paddle Magazine Release 5.56 / .223 and 7.62x51 / .308 German HK manufacture. The contact piece is used in the magazine release assembly for the paddle mag release...HKP-00465$29.95 -
HK MP5K Trigger Group - Burst 0,1,3,F
H&K Heckler & Koch
$3,299.95Heckler and Koch HK MP5K 4 Position (0,1,3,F) Burst Trigger Group New HK German factory fresh 9mm MP5K 4 position burst trigger group. Each unit comes just as it comes from the factory in Germany and...HKP-00403$3,299.95 -
HK MP5, MP5K Bolt Carrier Stop Pin and Axle Set
H&K Heckler & Koch
$14.95MP5 & MP5K Stop Pin, Axle Set For Bolt Carrier Each set is designed to keep the locking piece clocked at the correct location and in place when the stop axle and pin set are installed in the carrier...HKP-02558$14.95 -
HK MP5, MP5K, HK33 Optic View Front Sight Tower
$54.95Billeted One Piece "Optic View" Front Sight Tower HK front sight tower machined as one solid seamless billeted piece. The finest front sight tower that has been machined to allow the use of the...HKP-17879$54.95 -
HK Trip Lever - Friction
H&K Heckler & Koch
$24.95H&K Trip Lever - Friction This is the older friction-style trigger pack found on older HK trigger packs and all HK registered sear packs.HKP-02393$24.95 -
HK SL8, G36 Magazine Release Spring - US
GSG9
$4.95GSG9 Magazine Release Spring - USA Made for HK G36 and HK SL8 Mag release spring for all G36 and SL8 models. A must have spare part. Made in the USA. G36 G36KHKP-18254$4.95 -
HK P30L Tactical Barrel - 9mm - 5.06" - Threaded 13.5x1 LH
RCM
$225.00RCM HK P30L 9mm Tactical Barrel - Threaded 13.5x1 LH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest...HKP-16258$225.00 -
HK VP9, VP9SK, VP40 Firing Pin Return Spring
H&K Heckler & Koch
$9.95H&K VP9/VP9SK, VP40 Firing Pin Pressure Spring Compatible With: HK VP9/VP9SKHKP-16831$9.95 -
Out Of Stock
HK USPC Barrel - .45 ACP - 4.47" - Threaded .578x28 RH
RCM
$250.00RCM HK USPC .45 ACP Barrel - Threaded .578x28 RHHKP-17448$250.00 -
HK45, HK45 Compact, USP, USP Compact Control Latch
H&K Heckler & Koch
$16.95Control Latch Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACPHKP-01174$16.95