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
HK21, FMP Drum Hanger & 100rd Drum
H&K Heckler & Koch
Now: $997.95Was: $1,288.95H&K HK21/FMP Drum Hanger & 100rd Drum Complete your HK21 or FMP21 build with the incredibly rare original H&K drum hanger and 100-round drum. These components have long been discontinued and are essential for completing a proper HK21 or...HKP-21509Now: $997.95Was: $1,288.95 -
HK UMP, USC Sling Pin, Stock Block B
HKP HK Parts
$49.95HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin The original thumb screw version for all stock block B's.HKP-21504$49.95 -
On Sale
HK416 A5 Bolt Carrier - Complete
H&K Heckler & Koch
Now: $1,945.00Was: $2,349.95German H&K HK 416 A5 Bolt Carrier Complete Get your hands on that critical puzzle piece for your factory-correct 416A5 build. Fully assembled and ready to drop into your uper receiver. Bolt carriers may be marked ".223 Rem" or "5.56 x 45"...HKP-21500Now: $1,945.00Was: $2,349.95 -
HK VP9 R3D 2.0 Night Sights - Orange
XS Sights
$127.95XS Sight Systems VP9OR R3D 2.0 Night Sights - Orange Their second-generation R3D night sights are engineered to give you a brighter stronger set of sights. Easily install their sights with a set that requires 50% less force for installation. R3D sights...HKP-21465$127.95 -
On Sale
HK SP5 Stock - MOD2 - Strike Industries
HKP HK Parts / Strike Industries
Now: $111.71Was: $199.95Strike Industries HK SP5 Drop-In MOD2 Stock We pair our SP5 AR stock adpter with this Strike MOD2 stock to give you a drop-in SP5 stock. Give your build a modern look and added comfort and adjustability of the MOD2 stock. Only available here at HK...HKP-21332-MNow: $111.71Was: $199.95 -
Backup Sights - Picatinny
Strike Industries
$84.95Strike Industries 1913 Picatinny Backup Sights Features: Built-in backup sights when flipped down for quick target acquisition Low-profile and low snag design Toolless adjustments of windage and elevation Quick sliding dual aperture rear sight...HKP-21314$84.95 -
HK VP9 EMP Pocket Clip
Strike Industries
$9.95Strike Industries EMP Pocket Clip The Strike Industries EMP Pocket Clip gives you a quick and easy way to carry a spare pistol magazine for when you need it. The clip can also help hang or organize magazines in a range bag or safe. Offered for either...HKP-21303-M$9.95 -
On Sale
HK VP9L Railok™ Threaded Barrel Compensator
HKP HK Parts
Now: $129.95Was: $189.95HK Parts Railok™ Mounting System Threaded Barrel Compensator: H&K VP9L The HK Parts Railok™ mounting system compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip...HKP-21263Now: $129.95Was: $189.95 -
HK MG5 Unigrip QD with Bipod
B&T Brugger & Thomet
$239.95B&T HK MG5 Unigrip QD with Bipod This grip is made for the HK MG5 but is very versatile and can attacht to any firearm that has a forearm with a picatinny rail. It is primarily a foregrip, but due to the integrated bipod (which can be deployed...HKP-21051$239.95 -
On Sale
SIG P320 Hybrid Trigger - Adjustable
Grayguns
Now: $59.95Was: $94.00Grayguns SIG P320 Adjustable Hybrid Trigger The Grayguns P320 Adjustable Hybrid Trigger is a drop-in, bar-stock, enhanced trigger for your SIG Sauer P320. Expect a reduced pull weight as compared to the factory curved or straight trigger. Includes...HKP-19751Now: $59.95Was: $94.00 -
HK SL8-1 Front Sight Complete
H&K Heckler & Koch
$79.95H&K HK SL8-1 Complete Front Sight Complete front sight, less the mounting hardware.HKP-16633$79.95 -
Out Of Stock
HK XM8 Sling - Black
H&K Heckler & Koch
$99.95H&K HK XM8 Sling - Black New HK German XM8 Tactical Sling. The real deal and a rare HK collectible. Only a few available.HKP-17669$99.95