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 G36K Handguard - Quad Rail
B&T Brugger & Thomet
$329.95Swiss Made B&T Quad-Rail (4 Sided Picatinny Rail) Handguard For HK G36K Aluminum version with rail cover and sling swivel. The B&T offering is the finest railed hand guard available for the HK G36K...HKP-16895$329.95 -
HK UMP, USC, G36, SL8 Trigger
HDPS
$139.95HDPS US-Made Steel Trigger - USC & SL8 HDPS US-made triggers are ideal for meeting US 922r compliance as this counts as one of the needed parts when converting the HK USC to HK semi-auto UMP and the...HKP-02134$139.95 -
HK MP5 Locking Roller -6 - .40 S&W
HKP HK Parts
$11.95HK US MP540 Undersized Locking Roller, -6 The proper roller size is essential for headspacing the bolt gap correctly. Please Note: The price listed is per roller. Order 2 (pair) for a complete set...HKP-17566$11.95 -
On Sale
HK91, G3 Adjustable Tactical Folding Stock
Choate
Now: $97.97Was: $139.95HK G3, 91 & PTR Tactical Folding Stock Each stock is adjustable from 14 1/4" to 15 1/4" using the included adjustable spacer system, which will allow a full 2" range in adjustment for the specific...HKP-00884Now: $97.97Was: $139.95 -
Out Of Stock
HK MP5, HK94K, SP89 Firing Pin
POF
$24.95HK Contract MP5, HK94 Firing Pin - POF Made from HK prints and tooling in the POF factory. The USA and German HK offering are a better offering with tighter tolerances and better materials...HKP-18264$24.95 -
Out Of Stock
HK Burst Roller Type Trip Lever - Latest Style
H&K Heckler & Koch
$99.95H&K Burst Roller Type Trip Lever - Latest Style Compatible With: 0,1,3,F 0,1,2,F 0,1,3 0,1,2HKP-01846$99.95 -
On Sale
AR-15 Commercial Buffer Tube
HKP HK Parts
Now: $12.71Was: $24.95AR-15 Commercial Buffer Tube Compatible With: All AR-15 style platforms Not correct length for HK riflesHKP-02728Now: $12.71Was: $24.95 -
On Sale
HK SP5K Trigger Group - Super Safety
War Hammer Armaments
$562.46 - $674.95War Hammer Armaments OEM Polymer SP5K Super Safety Lower Receiver War Hammer Super Safety complete lower for SP5K platforms. Constructed of Kevlar and carbon-fiber–infused polymer, this complete...HKP-22828-M$562.46 - $674.95 -
On Sale
HK UMP Barrel Pin Screw
OMEGA
Now: $11.51Was: $13.95Omega UMP Barrel Pin Screw Barrel pin Screw that replaces barrel pins on Omega Gideon Shadow Compatible With: HK UMP HK USCHKP-22514Now: $11.51Was: $13.95 -
On Sale
HK MP5, MP5K Optic Mount - Optic, NV Laser - Picatinny, Aimpoint T-1, T-2, ACRO P-1, P-2
MI Midwest Industries
$122.47 - $174.95Midwest Industries HK MP5, MP5K Optic and IR, NV, Laser Mount for Aimpoint T-1/T-2 and Aimpoint ACRO Tall, clamp-on optic and laser mount for MP5 and MP5K pattern firearms. Allows you to run a micro...HKP-22393-M$122.47 - $174.95 -
On Sale
HK CC9 Holster - Sport-Tac - RH
Comp-Tac
Now: $62.96Was: $69.95Comp-Tac HK CC9 Sport-Tac Holster - Right Hand The Sport-TAC holster is a hybrid, inside-the-waistband holster designed to comfortably carry a 4' handgun at the 4-5 o'clock position. The Sport-TAC...HKP-21924Now: $62.96Was: $69.95 -
On Sale
HK91, G3, PTR Bolt Head Complete - Used
H&K Heckler & Koch
Now: $79.21Was: $99.95German HK G3 & HK 91 & PTR Bolt Head Complete - Used German Date Coded Made in Germany. Each used bolt head is complete with all parts installed & 100% functional. Taken from live demilled German HK...HKP-21902Now: $79.21Was: $99.95