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
HK45C Railok™ Compensator
HKP HK Parts
Now: $129.95Was: $189.95HK Parts Railok™ Mounting System Compensator: H&K HK45C The HK Parts Railok™ mounting system compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil,...HKP-21224Now: $129.95Was: $189.95 -
On Sale
HK Mark 23 Replacement Screw for Rail Mount Compensator
HKP HK Parts
Now: $9.45Was: $14.95HKP HK Mark 23 Compensator / Rail Replacement Screw Replacement Screw for the HK Parts Mark 23 Rail Mount Compensators. This includes (1) screw. Compatible with: HK Parts MK23 rail mount compensators Torque: Hand tightHKP-21060Now: $9.45Was: $14.95 -
Out Of Stock
HK P30L Tactical Barrel - 9mm - 5.06" - Threaded 1/2x28 RH
RCM
$225.00RCM HK P30L 9mm Tactical Barrel - Threaded 1/2x28 RH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement barrel for the HK P30L 9mm pistol...HKP-20496$225.00 -
Out Of Stock
ETS 30 Round HK VP9 9mm Magazine - Translucent
Elite Tactical Systems
$21.9930 Round Magazine - Elite Tactical Systems - 9mm - HK VP9, VP9L Features: Extended 30-round capacity Base plates interchangeable with ETS line of 9mm double stack magazines. Easy disassembly with our specially designed base plate Ergonomically designed...HKP-19197$21.99 -
HK UMP (.40 S&W & .45 ACP) Birdcage Flash Hider
B&T Brugger & Thomet
$99.95B&T HK UMP (.40 S&W & .45 ACP) Birdcage Flash Hider B&T muzzle brake/flash hider birdcage style with quick detach lever for HK UMP .40 S&W & .45 ACP. Swiss made B&T quick detach flash hider for HK UMP .40 and .45ACP...HKP-16890$99.95 -
HK/HKP 20 Round VP9SK & P30SK 9mm Magazine
HKP HK Parts / Heckler & Koch
$89.9510 Round Magazine with Black +10 Extension - 9mm - HK VP9SK & P30SK Drop-in magazine ready to go! HK Parts takes an existing 10 round magazine a +10 magazine extension and assembles them into a working 20 round magazine. Compatible With: HKP30...HKP-20599$89.95 -
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 -
HK VP9B Push Button Mag Release Tool
H&K Heckler & Koch
$17.99Push Button Mag Release Disassembly Tool - HK VP9 B The factory HK OEM tool used to change the left to right mag release button of the VP9B models. Compatible With: HK VP9B NOT compatible with VP9A1 F, VP9A1 KHKP-19747$17.99 -
HK416A5, MR556 Ambi Selector Lever Set Complete
H&K Heckler & Koch
$179.95H&K HK MR556/416 A5 Ambi Selector Lever Set Complete New HK German manufacture. Complete kit to upgrade the selector lever set on the MR556 to the newer HK 416A5 semi style of levers. A drop in upgrade for the MR556 & CR556. Includes: HK 416 A5...HKP-19375$179.95 -
HK USP, P30, VP9 Magazine Spring - 30 / 32 Round
H&K Heckler & Koch
$9.95H&K 30/32 Round HK USP/P30/VP9 Magazine Spring HK German manufacture new production HK USP 9mm 32 round magazine spring. A super rare and hard to find part for the USP 9mm extended 32 round magazines. This spring took years of searching to find in...HKP-16407$9.95 -
HK416, MR556, HK417, MR762 Storage Cap - Pistol Grip
H&K Heckler & Koch
$29.95H&K HK MR556/416/MR762 Battle Grip Storage Cap This part is the replacement grip plug for the bottom of the HK battle grip. Compatible With: HK MR556 HK 416 HK MR762 Please Note: Does not fit for the HK416 .22LR models**HKP-15251$29.95 -
HK416A5 Stripped Upper Receiver
H&K Heckler & Koch
$489.99HK 416A5 - Stripped Upper Receiver This is the factory correct receiver for a true 416 build as it features the M16 relief cut in the bottom, rear portion of the receiver (shown in last pricture). Compatible With: HK 416 HK MR223 HK MR556 Need a...HKP-18786$489.99