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 P30, HK45, USPC Recoil Spring
H&K Heckler & Koch
$18.95New HK German Pistol Recoil Spring This part is ideal for repair or a replacement item as this is a high-wear item. This spring is the factory-correct flat-style compression spring. Compatible With:HKP-01673$18.95 -
HK G36C, G36K Gas Piston
H&K Heckler & Koch
$99.95HK German G36C & G36K Gas Piston - Complete New HK German factory G36C and G36K gas piston complete with sealing rings installed. A great spare or replacement part. This is also a popular part for...HKP-00352$99.95 -
On Sale
HK VP9A1 F Compensator - MOD 1
HKP HK Parts
Now: $143.96Was: $179.95HKP HK VP9A1 F MOD 1 Compensator The HKP MOD 1 compensator is designed to reduce muzzle rise and improve shot-to-shot recovery while maintaining a clean, integrated look. Each unit includes both the...HKP-22077Now: $143.96Was: $179.95 -
HK416, MR556, HK417, MR762 Selector Lever Clamping Sleeve - Ambi
H&K Heckler & Koch
$5.95H&K MR556/MR762/416/417 Ambidextrous Selector Clamping Sleeve German H&K factory clamping sleeve for ambidextrous selector levers on MR556, MR762, HK416, and HK417. Compatible With: HHKP-22062$5.95 -
HK45 Magazine with Extension - Enhanced - 15 Round
HKP HK Parts
$113.95HKP HK Parts 15 Round Enhanced Magazine for HK45 HK45 and HK45 tactical +5 enhanced magazine extension. Our enhanced magazine was made to emulate the same side and front grip section of the HK45...HKP-21430-M$113.95 -
Out Of Stock
HK MP5, SP5K Optic Mount - Trijicon RMR - 6.5 MOA
Trijicon
$619.95RMR Optic Mount - Bundle - HK MP5 Includes: (1)Trijicon RMR Type 2 Red Dot Sight 6.5 MOA Red Dot, Adjustable LED (1) MP5 RMR Optic MountHKP-20734$619.95 -
On Sale
HK53 Bolt Carrier - Full Auto - RCM
RCM
Now: $312.00Was: $389.99RCM HK53 Full Auto Bolt Carrier US manufactured new-style HK53 factory bolt carrier. The finest HK53 carrier ever made with the latest & greatest German inspired improvements and updates. Ideal for...HKP-20538Now: $312.00Was: $389.99 -
Out Of Stock
HK33, HK53, HK93 Backplate - Painted
H&K Heckler & Koch
$69.95Steel Back Plate For HK93, 33, 53 & MP5, 94- Painted HK Black HK German backplate with the recoil assembly cup guide installed. Each unit comes complete & freshly painted HK Black. Manufactured from...HKP-16254$69.95 -
HK SP5K, MP5K Cocking Tube Support Spring - Reverse Stretch
H&K Heckler & Koch
$6.95Heckler and Koch HK SP5K, MP5K Reverse Stretch Cocking Tube Support Spring A great spare to have on hand as this part can become worn and be lost. The cocking tube support spring applies pressure to...HKP-17873$6.95 -
HK MP5, HK90 Series Locking Roller -2 - Standard 7.98mm - Used
H&K Heckler & Koch
$9.95HK German Locking Roller Standard 7.98mm - Used The proper roller size is essential for proper head spacing and bolt gap. Used German German-made -2 or 7.98mm roller, each roller is priced per roller...HKP-20600$9.95 -
HKP Shirt - Short Sleeve - Black
HKP HK Parts
$14.95HKP Short Sleeve Shirt - Black Get your hands on some of our premium new apparel! Featuring our sleek new logo printed over soft cotton, this shirt is certain to catch an eye at the...HKP-21026-M$14.95 -
HK VP9, VP9SK, VP40 Elbow Spring, Drop Safety
H&K Heckler & Koch
$5.95H&K HK VP9/VP9SK, VP40 Drop Safety Elbow Spring Compatible With: HK VP9 <HKP-16835$5.95