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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HK90 Series Cocking Tube Extrusion - 12" Section
H&K Heckler & Koch
$54.95H&K Factory Cocking Tube Extrusion 12" Section HK cocking tube section is perfect for custom HK cocking tube projects. Overall length is 12" long. All steel and ready for that custom project or...HKP-13487$54.95 -
HK MP5K, SP89 Grip Frame - Semi Auto SEF - Metal Style
HKP HK Parts
$189.95HKP HK Parts and Heckler and Koch HK MP5K, SP89 9mm SEF Metal Style Grip Frame Each German HK housing started out as a factory HK German select fire metal housing. Each housing was modified by...HKP-16490$189.95 -
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 -
HK SP5 Trigger Group - Super Safety
War Hammer Armaments
$624.95 - $674.95War Hammer Armaments OEM Polymer SP5 Super Safety Lower Receiver War Hammer Super Safety complete lower for SP5 platforms. Constructed of Kevlar and carbon-fiber–infused polymer, this complete lower...HKP-22826-M$624.95 - $674.95 -
HK VP9, P30, HK45 Elevated Night Sights
H&K Heckler & Koch
$74.95H&K VP9/P30/HK45 Elevated Night Sights Elevated night sight set for improved visibility under low light conditions.HKP-22018$74.95 -
HK CC9 Holster - Sport-Tac - RH
Comp-Tac
$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-21924$69.95 -
On Sale
HK UMP, USC 4 Piece M-LOK Set - Anodized
HKP HK Parts
Now: $74.96Was: $149.95HKP HK UMP/USC 4 Piece M-Lok Set - Anodized Upgrade your UMP and USC with the HK Parts 4-piece M-Lok set, designed to eliminate the hassle of snagging and shredding your knuckles on Picatinny rails...HKP-21663-MNow: $74.96Was: $149.95 -
Carbon-Cleaner - 500 ml Aerosol
SchleTek
$32.95SchleTek Carbon Cleaner 500 ml Aerosol Time-saving removal of stubborn fouling. Special formula for heavily used firearms. Frequent and thorough gun cleaning is not only a prerequisite to achieve...HKP-21766$32.95 -
On Sale
HK45C Railok™ Threaded Barrel Compensator
HKP HK Parts
Now: $97.46Was: $189.95HK Parts Railok™ Mounting System Threaded Barrel Compensator: H&K HK45C The HK Parts Railok™ mounting system compensator strikes a seamless balance of form and function. Users will immediately...HKP-21264Now: $97.46Was: $189.95 -
On Sale
HK UMP Enhanced Top Rail - Red
HKP HK Parts
Now: $31.84Was: $49.95HKP HK UMP Enhanced Top Rail - Red HK USC, UMP top receiver rail with hardware. The extended length allows the use of all optics that fit on a Picatinny rail. This unit has a contoured no snag design...HKP-20812Now: $31.84Was: $49.95 -
HK MP5K, SP89 Trigger Housing - SEF Navy - Clipped and Pinned - LIKE NEW
H&K Heckler & Koch
$149.95H&K MP5K & SP89 9mm SEF Navy Style Housing - Clipped & Pinned - LIKE NEW Each housing is clipped and pinned and fitted for the semi auto shelf of the HK MP5K builds or SP89 firearms. SpecificHKP-20617$149.95 -
Out Of Stock
HK MP5 Magazine - 30 Round - .40 S&W, 10mm - Gray - Used
H&K Heckler & Koch
$159.95H&K Heckler & Koch 30 Round Magazine for HK MP5 .40/10mm - Gray - USED These magazines are no longer available, and we have just a few remaining units. Once they are gone, they are gone for good.HKP-01726$159.95