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 VP40, VP40T, P30, P30L, P30S Magazine - .40 ACP - 18 Round
HKP HK Parts
$79.9518 Round HK VP40/Tactical, HK P30/L/S .40 Cal Magazine Each mag comes fully assembled and ready for use. HK Parts take an existing 13 round mag the +5 mag extension and assembles them into a working...HKP-18187$79.95 -
HK91, G3 Flash Hider - Threaded 5/8x24 RH
HKP HK Parts
$27.95HK91 (7.62x51/.308) Flash Hider - Threaded 5/8x24 RH Made in the USA to the exact specifications of the original HK flash hider, following strict HK standards. This flash hider offers the best...HKP-17930$27.95 -
HK 9mm Adapter - 3 Lug - Threaded 13.5x1 LH
HKP HK Parts
$49.95HKP 9mm 3-Lug Adapter - Threaded 13.5x1 LH The HK Parts 3-Lug Adapter is internally threaded in 13.5x1 left hand. Our adapter allows the attachment of common 3-lug accessories: flash hiders,...HKP-17410$49.95 -
On Sale
HK MP5 .22 LR Optic Mount - RMR, Holosun
HKP HK Parts
$62.44 - $97.95HKP HK Parts RMR and Holosun Optic Mount for HK MP5 .22 The finest mounting solution to properly mount your RDS on your MP5 .22. Our 3-piece optic mount installs quickly and securely using the...HKP-20867-M$62.44 - $97.95 -
HK MP5, HK94, SP5 Handguard - Wide
H&K Heckler & Koch
$74.95H&K MP5/SP5/HK94 Wide Forearm German HK MP5 Handguard, also known as the Tropical wide forearm. This is the real deal in HK German and the gold standard of HK MP5 handguard offerings. Compatible...HKP-00174$74.95 -
HK MP5, MP5K Magazine Block - 30 to 10 Round Conversion - Curved
Raddlock
$9.95Magazine Block Plug To Reduce HK MP5 30 Round Magazine To 10 rounds MP5 10/30 mag block. This is designed to be used on the HK MP5 30 round, curved, steel magazine. Very easy to install & use...HKP-02434$9.95 -
HK VP9, VP9SK Left Side Charging Support
H&K Heckler & Koch
$5.95Charging Support, Cocking Aid - Left Side - VP9 & VP9SK Replacement cocking aid for the slide. German HK. Compatible With: VP9 VP9 TactHKP-16824$5.95 -
Out Of Stock
HK MP5K, SP89, SP5K Recoil Rod Assembly
H&K Heckler & Koch
$74.95HK German MP5K, SP-89, SP5K Recoil Rod Assembly Complete The recoil spring assembly is a great item to have on hand for replacement and spares as this is a consumable wearable part. New factory...HKP-00386$74.95 -
HK MP5SD Barrel Port Cleaning Brush
HKP HK Parts
$69.95HKP HK MP5SD 9mm Barrel Port Brush The HKP MP5SD barrel port brush can be rotated in either direction for stiffer or softer cleaning when using ourHKP-20989$69.95 -
HK VP9 Optic Plate #9 - Trijicon RMR CC - Red Dot Pistol Mount
HKP HK Parts
$49.95HK VP9 Series Optics Ready #9 - Trijicon RMR CC - Optic Mount - Steel Each plate is CNC machined from a solid billet of ordnance grade steel, deburred, tumbled and Cerakoted for the ultimate in...HKP-20027$49.95 -
HK416, MR556 Piston Rod - Complete Assembly
H&K Heckler & Koch
$109.95Heckler and Koch Complete Piston Rod Assembly for your HK416, HK MR556, HK417, and HK MR762 A great replacement or spare to keep on hand. Compatible With: HK416, MR556HKP-00042$109.95 -
On Sale
HK90 Series Stock Locking Pin - Large
MKE
Now: $5.56Was: $6.95MKE Large Push Pin for your HK90 Series Stock Each large stock push pin is used to retain the stock to the receiver on the 90-series firearms. These are great replacement or spare part to keep on...HKP-21593Now: $5.56Was: $6.95