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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On Sale
HK VP9 +5 Extended 9mm Magazine Plate
Strike Industries
Now: $16.46Was: $19.95Strike Industries HK VP9 +5 Extended 9mm Magazine Plate The Strike Industries Extended Magazine Plate for HK VP9 was designed to provide smoother magazine reloading through a slow drag / no snag...HKP-19607Now: $16.46Was: $19.95 -
On Sale
HK P30 Series Extended Competition Magwell
HKP HK Parts
Now: $37.46Was: $74.95HK P30, P30S & P30L Extended Magwell, Jet funnel Kit - Competition The HK Parts manufactured Competition P30 extended magwell is CNC machined in the USA from billet aircraft grade aluminum that is...HKP-17979Now: $37.46Was: $74.95 -
HK MP5 .22 Bench Mat
HKP HK Parts
$24.95HK MP5 .22 Bench Mat The HK MP5 .22 bench mat is the perfect cleaning & repair mat designed specifically for your HK MP5 .22 models. Have fun and learn while you work on your favorite H&K firearm...HKP-17280$24.95 -
HK P2000SK Magazine Floorplate - 9mm - 10 Round - Extended
H&K Heckler & Koch
$22.95HK German P2000 SK Magazine Floor Plate - Extended P2000SK extended magazine floor plate fits all P2000 SK magazines. The perfect floorplate if you want a place for your pinky when grasping the...HKP-17399$22.95 -
HK45, HK45C Bench Mat
HKP HK Parts
$13.95HKP HK 45/45C Bench Mat This isn't your ordinary gun cleaning mat! Show your pride for your HK45, HK45C firearm while using this high quality neoprene rubber backed and cloth top gun cleaning mat to...HKP-17171$13.95 -
HK MP5 Trunnion - 9mm
RCM
$64.95RCM MP5 9mm Trunnion US made to exact factory HK specifications and machined completely from ordnance grade steel and heat treated to factory specs. Compatible With: MP5, 94<HKP-01193$64.95 -
On Sale
HK21, HK11 Barrel - 17.7" -7.62x51 / .308
RCM
Now: $616.46Was: $684.95RCM HK21 Barrel RCM HK21 barrels are crafted from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance. These barrels are the most cost-effective option to finish your HK21/FMP or...HKP-21521Now: $616.46Was: $684.95 -
On Sale
HK P30 International Holster - Comp Carry
Comp-Tac
$50.97 - $65.96Comp-Tac HK P30 International Comp Carry Holster This custom made Comp-Tac International OWB holster for your HK pistol that allows you to have the Rail Mount Compensator, Comp Weight, or Match...HKP-20018-M$50.97 - $65.96 -
HK91, G3, PTR Central Buttstock Section - OD Green - Used
H&K Heckler & Koch
$5.99H&K HK G3, HK 91, PTR Central Buttstock Section - OD Green - Used USED German G3, 91, PTR Central Butt stock Section- Green in color. This stock section is no longer being manufactured as the HKG3,...HKP-17139$5.99 -
HK416, MR556 Trigger Guard - A5 Style
HKP HK Parts
$39.95HKP HK416, HK MR556 HK416A5 Style Trigger Guard Now you can upgrade your MR556, HK416, and CR556 to the latest Gen HK416 A5 Enhanced Trigger Guard. Fully assembled and ready to drop in. With a...HKP-17793-M$39.95 -
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - TiN Coated
H&K Heckler & Koch
$149.95Heckler and Koch 30 Round HK MP5 9mm Magazine - TiN Coated/CRN Coated Get your hands on some TiN coated factory Heckler & Koch magazines. Each magazine starts out as a fresh 9mm, 30 round mag before...HKP-21643-M$149.95 -
On Sale
HK MP5SD Barrel Brush Cleaning Tool
HiTec Arms
Now: $107.96Was: $119.95HiTec Arms barrel tool for cleaning your HK MP5SD Barrel cleaning brush tool for integrally suppressed ported barrels. This is a good tool to have on hand for any MP5SD owner to clean carbon build up...HKP-21347-MNow: $107.96Was: $119.95