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 G36K Piston Rod Assembly, Complete
H&K Heckler & Koch
$89.95New Heckler and Koch German Gas Piston Rod and Spring Assembly for HK G36K Great for spare parts or to use on that HK SL8-G36 conversion. Compatible with: G36KHKP-00284$89.95 -
HK UMP, USC Cocking Handle Pin
H&K Heckler & Koch
$7.95HK UMP & USC Cocking Handle Pin Compatible With: HK UMP HK USCHKP-01885$7.95 -
HK USP Flat Tracker Takedown Lever - Volker Precision
Volker Precision
$112.95HK USP Full Size Flat Tracker - Volker Precision Volker Precision flat tracker for full size USP models in all calibers. Available exclusively at HK Parts Compatible With: HK USP9, USP40, USP45HKP-22447$112.95 -
HK VP9 MOD 1 Compensator
HKP HK Parts
$179.95HK Parts MOD 1 Compensator: HK VP9 The HK Parts MOD 1 compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil, getting you back on target quicker. Each MOD 1 comp includes both...HKP-21223$179.95 -
On Sale
HK P30L Compensator - Quick Detach - V1
HKP HK Parts
Now: $98.95Was: $199.95HKP HK P30L Quick Detach Comp Weight™ Compensator Easy on, easy off - Quick Detach technology. The HK Parts P30L Comp Weight™ is the world's first quick detach Comp Weight™, compensator. That slides effortlessly onto your pistol frame...HKP-18153Now: $98.95Was: $199.95 -
HK MP5, HK90 Series Front Night Sight - Standard Dot - Tritium
XS Sights
$92.95XS Sights Tritium Night Sight - Standard Dot Standard Dot front sights use a patent-pending glow dot that absorbs light and glows in low light levels before it is dark enough to see the tritium. Green is a great option for low light and has a very...HKP-19602$92.95 -
Out Of Stock
HK USPC Tactical Barrel - 9mm - 4.28" - Threaded 13.5x1 LH
RCM
$225.00RCM HK USPC 9mm Tactical Barrel - Threaded 13.5x1 LH Each USPC tactical barrel is crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement barrel for the HK USP Compact 9mm...HKP-01706$225.00 -
HK VP9, VP40, P30, USPC, P2000 Mag Pouch - Single
Comp-Tac
$38.95Comp-Tac HK VP9/VP40/P30/USPC/P2000 Single Mag Pouch The Comp-Tac single magazine pouch is an outside the waistband holder to carry a spare magazine for competition, concealed carry or general use. The Comp-Tac single magazine pouch provides a rigid...HKP-17498$38.95 -
Out Of Stock
GSG-522, GSG-16 Drum Magazine - 50 Round - Translucent
HKP HK Parts
$79.95HKP 50 Round GSG-522/GSG-16 Drum Magazine - Translucent Compatible With: GSG-16 GSG5 GSG5PK GSG522 GSG5-SD ** Please note: This magazine will NOT FIT the HK Walther/Umarex MP5-A5 or SD models (we have one that works for the HK MP5 .22 in the MP5 .22...HKP-16234$79.95 -
Magpul MS3 Sling - Gen 2
Magpul
$49.95Magpul MS3 Sling - Gen 2 Magpul Industries MS3- Multi Mission Sling System Sling Black AR Rifles 1 or 2 Point Sling.HKP-13727$49.95 -
PTR Spec Tac Latch
Other
$69.95Tac Latch (latest Generation) PTR Spec - PTR .308 Firearms The new updated style of Tac latch is made specifically for the PTR 91 .308 receiver and will require very little modification to the firearm for installation. A major overhaul of the existing...HKP-17611$69.95 -
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 Mount The finest mounting solution to properly mount your RDS on your MP5 or any other receiver that utilizes the...HKP-20734$619.95