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 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...HKP-01706$225.00 -
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 GSG5PKHKP-16234$79.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Clamping Sleeve
H&K Heckler & Koch
$5.95H&K HK 416/417/MR556/MR762 Clamping Sleeve Compatible With: HK416 HK417HKP-16618$5.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Bolt Catch Spring
H&K Heckler & Koch
$6.95Heckler and Koch HK MR556/762/416/417 Bolt Catch Spring Compatible With: HK MR556 HK 416 HK MR762 HK 417HKP-16661$6.95 -
HK MP5, HK90 Series Bushing Sleeve for Elbow Spring - Semi Auto
HKP HK Parts
$8.95HK Parts Distance Sleeve replacement for your elbow spring in your Semi-Auto MP5 New USA manufacture. Semi auto spacer for elbow spring on the HK 90 series trigger packs. Micro polished and made...HKP-18210$8.95 -
On Sale
HK MP5 Barrel Extension - 9mm
HKP HK Parts
Now: $31.84Was: $49.95HKP MP5 9mm Barrel Extension The MP5 3-lug barrel extension functions as a fake suppressor to give the standard 8.85" barrel an overall length of 16" for rifle builds. The extension slips over the...HKP-18000Now: $31.84Was: $49.95 -
HK Armorers Tool for Burst Trigger Packs
H&K Heckler & Koch
$99.95Heckler & Koch Factory Burst Trigger Pack Armorer's Tool A must-have tool to maintain, disassemble, and reassemble burst trigger packs for cleaning and repair. This tool will save you a ton of time...HKP-00898$99.95 -
On Sale
Binary Safety Selector Set - Ambidextrous - Extended
HKP HK Parts
$57.34 - $89.95HKP Ambi ESSL Housing Franklin Armory Binary Selector Set - Levers Only HK Parts extended safety selector Selector Lever Set, expertly modeled after the HK Ambi Style Selector Lever. This premium...HKP-21616-M$57.34 - $89.95 -
HK MP5F Receiver Flat - Alternate Holes
HKP HK Parts
$125.95HKP HK MP5F 9mm Flat - Alternate Holes MP5 receiver flat crafted by the original German tool and die maker of the LSC receiver flat using factory original German prints and specifications. This...HKP-21551$125.95 -
HK91, G3 Stock - MOE PR
Magpul
$199.95Magpul HK91, G3 MOE PR Stock The MOE PR is a full-size carbine stock that blends the simplicity of the legacy MOE carbine stock with design lines reminiscent of the PRS Lite. Features:HKP-21198$199.95 -
Out Of Stock
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - LEO Marked - Like New
H&K Heckler & Koch
$199.95HK German MP5 30 Round Magazine Laser Etched LEO MarkingsHKP-20517$199.95 -
HK33, HK93 A2 Buttstock - Surplus
H&K Heckler & Koch
$99.95H&K HK33/HK93 A2 Black Buttstock - Surplus HK33 complete surplus buttstock assembly in good condition. In perfect working order but will have signs of use. This is the original buttstock for the...HKP-20133$99.95