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 UMP Magazine Locking Plate - .45 ACP
H&K Heckler & Koch
$9.95H&K UMP (.45 ACP) Magazine Locking PlateHKP-16338$9.95 -
HK G3 Repair Manual
HKP HK Parts
$15.95HK G3, 91, PTR Repair Manual This manual contains parts 3 and 4 of the G3 Rifle Manual for the G3, which is the full auto version of the HK91. Part 3 is for troop repair and part 4 contains field repairs. This manual is NOT a heavy-duty...HKP-15212$15.95 -
HK91, G3 Tactical Handguard
PTR
$149.95New 2nd Generation- HK Black Matte Finish PTR, HK91, G3 Forearm Made from aircraft-grade aluminum, rock-solid, and lightweight. This forearm allows you to add up to 3 rails on your firearm. That includes the left, right, as well as bottom sides,...HKP-00368$149.95 -
HK33, HK91, G3 Complete Triple Frame Front Sight Tower
H&K Heckler & Koch
$29.95NEW HK German Front Sight Tower Triple Frame G3 triple frame in. Comes complete with sight blade and roll pin. Compatible With: HK G3 HK G3K HK 93 HK 33HKP-18777$29.95 -
HK416, MR556, HK417, MR762 Rear Sight - Flip Up - 2mm
H&K Heckler & Koch
$395.99H&K HK MR556/MR762/416/417 Flip Up Rear Sight - 2mm This sight attaches to any standard Picatinny rail. No hardware is needed as this is a self-contained quick-attach rear sight assembly. This unique HK-designed sight features a quick and easy push...HKP-08951$395.99 -
HK416, MR556 Buffer Tube - Enhanced
H&K Heckler & Koch
$199.95FDE HK 416, MR556 OTB (over the beach) Buffer Tube, Receiver Extension - Commercial Genuine HK German manufactured 416 & MR556 latest generation, marine environment & over the beach buffer tube. Each commercial buffer tube has built in drainage...HKP-18499$199.95 -
On Sale
HK45C Railok™ Compensator
HKP HK Parts
Now: $97.46Was: $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: $97.46Was: $189.95 -
HK SP5 German Folding Stock with HK Parts Adapter
HKP HK Parts / Heckler & Koch
$299.95German Folding Stock with HK Parts Adapter - SP5 German folding stock with a SP5 HK Parts adapter. The HK Parts adapter is made from a solid billet of CNC machined aircraft grade aluminum and offers a QD attachment point. This will be a drop in stock for...HKP-20645$299.95 -
HK UMP Birdcage Flash Hider - .40 S&W, .45 ACP
B&T Brugger & Thomet
$99.95B&T Brugger and Thomet Birdcage Flash Hider in .40 S&W and .45 ACP for HK UMP B&T muzzle brake and 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...HKP-16890$99.95 -
On Sale
HK VP9, VP9SK, VP40 Enhanced Support Sleeve - Green
HKP HK Parts
Now: $7.75Was: $14.96Enhanced Support Sleeve VP9, VP9SK & VP40 - Aluminum Alloy - Green A must-have upgrade part for the VP series of pistols! The support sleeve is found in the VP slide and is the part that depresses to allow you to remove the slide plate, firing pin...HKP-19631Now: $7.75Was: $14.96 -
Bore Boss Pull-Through Bore Cleaner - 9mm / .357 / .38
Real Avid
$12.95Real Avid Bore Boss Pull-Through Bore Cleaner - .357/9mm/.38 From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece...HKP-19400$12.95 -
HK P30, P2000, USP Block Spring - Heavy Firing Pin
H&K Heckler & Koch
$5.95HK P2000 & P30 Heavy Firing Pin Block Spring This is the heavy LEM spring found on the LEM conversion. Compatible With: Any post-2005 production USP & UPSC P2000 P2000SK P30 P30SK Will fit the HK45 & HK45C modelsHKP-01603$5.95