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 VP9 Series Magazine Catch
H&K Heckler & Koch
$24.95Heckler and Koch Magazine Catch for HK VP9 and HK VP40 New HK German manufacture. Compatible With: VP9 VP9SK VP9 Tactical VP9 Match VP40 VP40 TacticalHKP-16817$24.95 -
Out Of Stock
HK VP Series F2 Trigger - Flat Face - Red
Lazy Wolf
$134.95Lazy Wolf F2 Flat Face Trigger for the Heckler and Koch HK VP Series In a collaboration with Lazy Wolf Guns, HK Parts is offering aftermarket triggers for your HK VP9 and HK VP40 handguns. The drop in VP9 series is the greatest trigger ever...HKP-18878$134.95 -
HK45, P30, P30L, P30SK Magazine Release
H&K Heckler & Koch
$15.95Heckler and Koch Magazine Release for HK45 and HK P30 Compatible With: HK45 HK45 Tactical HK P30, P30S, P30L, P30SK Please Note: This part will not fit pistols other than the ones listed above.HKP-01809$15.95 -
HK416A5, MR556 Selector Lever Set, Complete - Ambi - RAL8000
H&K Heckler & Koch
$189.95Heckler and Koch Ambidextrous Selector Lever Set Complete for HK416A5 SEMI and HK MR556 - RAL 8000 New HK German manufacture. Complete kit to upgrade the selector lever set on the HK MR556 to the newer HK416A5 semi style of levers...HKP-17603$189.95 -
HK UMP Magazine Spring - .40 S&W - 30 Round
H&K Heckler & Koch
$8.95HK UMP .40 30 Round Magazine Spring Perfect for spares and to have on hand as these are consumable high-wear items. Compatible With: HK UMP .40HKP-02742$8.95 -
HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - H&K
H&K Heckler & Koch
$99.95HK Factory German MP5K, SP-89, & SP5K End Cap With Sling Swivel Each pistol end cap is OEM HK German MP5K and MP5K-N and has the HK German factory buffer. Compatible With: MP5K SP89 SP5K MP5K-N MP5K-PDW MP5K Clone Or Other Custom BuildsHKP-00394$99.95 -
On Sale
HK MP5 Recoil Spring
MKE
Now: $7.95Was: $10.99MKE HK MP5 Recoil Spring Great replacement and spare recoil spring as this is a common repair and replacement item. Compatible With: HK MP5 Century Arms AP5 Clones & custom buildsHKP-22239Now: $7.95Was: $10.99 -
On Sale
HK MP5, MP5K Binary Selector Set - Ambi Housing - Skeletonized - HK
HKP HK Parts
Now: $63.95Was: $79.95HKP/H&K MP5, MP5K 9mm Selector Lever Set For Franklin Armory BFSIII HK Binary Trigger Pack - Skeletonized Aluminum The HKP skeletonized aluminum selector lever set was modeled after the HK ambi style selector lever and modified for a cleaner...HKP-20470-MNow: $63.95Was: $79.95 -
HK G36, HK SL8 Side Rail Factory HK
H&K Heckler & Koch
$67.95HK Factory German G36 & SL8 Side Rail With Screws Up to two side rails can be used on a G36 UMP, one for each of the sides. Made from hard coat anodized aluminum. Compatible With: SL8 full size G36 full sizeHKP-01962$67.95 -
HKP Shirt - Short Sleeve - Tan
HKP HK Parts
$14.95HKP Short Sleeve Shirt - Tan 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 range! Features: Unisex fit Fine cotton High Fidelity DTG...HKP-21027-M$14.95 -
On Sale
HK USP Barrel - .45 ACP - 5.09" - Threaded 16x1 LH
RCM
Now: $224.95Was: $250.00RCM HK USP .45 ACP Barrel - Threaded 16x1 LH HK USP .45 ACP & HK USP Tactical .45 ACP threaded barrel for use with a wide variety of flash hiders & sound suppressors. This is a special offering as a factory USP Tactical.45 ACP barrel is threaded...HKP-20130Now: $224.95Was: $250.00 -
On Sale
HK MP5K Folding Stock with Adapter
Now: $242.95Was: $269.95German Folding Stock with HK Parts Adapter - MP5K German folding stock with MP5K HK Parts Adapter. The HK Parts adapter offers a QD attachment point and is made from hard coat anodized aluminum. Compatible With: MP5K SP5K In spec clonesHKP-19550Now: $242.95Was: $269.95