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 Mark 23, SOCOM Firing Pin Block
H&K Heckler & Koch
$35.95Heckler and Koch Firing Pin Block for Mark 23 and SOCOM This is the real deal and it is plated in nickel and made for the HK Mark 23 and SOCOM models. Compatible With:HKP-01579$35.95 -
On Sale
HK P30L Conversion Barrel - .40 S&W To .357 SIG - Non-Threaded
RCM
Now: $151.41Was: $237.50RCM HK P30L .40 S&W To .357 SIG Conversion Barrel - Non-ThreadedHKP-17568Now: $151.41Was: $237.50 -
HK45, 45C, P30, 30L Holster - MTAC - RH
Comp-Tac
$94.95HK P30, P30L, HK45, HK45C MTAC Holster - Right Hand The MTAC is an inside the waistband Kydex and leather hybrid holster designed for concealed carry. Created to be worn behind the hip at 4:00 or...HKP-17476$94.95 -
HK45, HK45 Compact, USP, USP Compact .45 ACP Trigger Bar
H&K Heckler & Koch
$45.95New HK German Factory Trigger Bar Compatible With: HK USP 45, USP .45 Tactical HK USP Compact .45 HK 45, HK45 TacticalHKP-01255$45.95 -
HK USP Raised Tactical Front Sight
H&K Heckler & Koch
$29.95H&K HK USP Raised Tactical Front Sight Compatible With: USP 9mm USP .40 USP .45HKP-01403$29.95 -
Out Of Stock
HK USPC Magazine with Extended Floorplate - .357 SIG - 10 Round -
H&K Heckler & Koch
$49.00Heckler and Koch 10 Round .357 Extended Floorplate Magazine for HK USP Compact Will work with .40 cal rounds. Brand new HK German manufactured.HKP-01238$49.00 -
HK SL8, G36 Piston Rod Assembly
H&K Heckler & Koch
$64.95Heckler and Koch Gas Piston Rod and Spring Assembly for HK G36 and HK SL8 Great for spare parts or to use on that HK SL8-G36 conversion. This is a high-wear item and a must-have spare part...HKP-02000$64.95 -
HK G36, SL8 Firing Pin Retaining Pin, Complete
H&K Heckler & Koch
$11.95Retaining Pin For Firing Pin Complete With O-Ring Compatible With: HK G36 HK SL8HKP-14050$11.95 -
Out Of Stock
HK USC, SL8 Sight Support Spring
H&K Heckler & Koch
$9.95H&K USC/SL8 (.45 ACP/5.56/.223) Rear Sight SpringHKP-16516$9.95 -
HK G3, HK417 Flash Hider - WARCOMP - Threaded 5/8x24
Surefire
$159.95SureFire WARCOMP (7.62x51/.308) Flash Hider - Threaded 5/8x24 This flash hider is perfect for the post 2016 production PTR models as well as C308 models. Compatible With:HKP-18024$159.95 -
M-LOK Sling Swivel Mount - Quick Detach
AIM
$24.99M-LOK Quick Detach Sling Swivel Mount The Aim M-LOK® QD Sling Mount stud with QD swivel provides a front attachment point for your push button QD sling or sling with just strap. Includes:HKP-18589$24.99 -
HK MP5, MP5K Muzzle Protector Cap - 3-Lug
H&K Heckler & Koch
$19.95H&K MP5, MP5K Muzzle Protector Cap - 3-Lug New HK German high-impact polymer muzzle protector, sealing cap. Simply slide the barrel cap over the exposed HK MP5, MP5K 3-lug barrel and remove when...HKP-17666$19.95