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 MP5 .22 Optic Mount - Minimalist - Picatinny Rail
HKP HK Parts
$97.95HKP HK MP5 .22 Minimalist Picatinny Rail Optic Mount Our new picatinny style optic mount is a game changer for those that want to have a minimalist look on their MP5 .22. You can have a picatinny...HKP-21369$97.95 -
On Sale
GSG-5, GSG5PK Magazine Spring - .22LR - 22 Round
GSG German Sports Guns
Now: $4.46Was: $4.95GSG 22 Round GSG-5 .22LR Magazine Spring A must-have replacement spare part as the mags are used or stored. Perfect for those who have weak feeding Promag GSG mags, as these mag springs will help get...HKP-14548Now: $4.46Was: $4.95 -
On Sale
Russian GP-5 Gas Mask Kit - Soviet Military - New
Now: $7.50Was: $20.00Russian GP-5 Gas Mask Kit, New - Soviet Military New Soviet civil guard gas mask kit. Civil guard kits are the same as Russian military GP-5 gas masks but have a grey mask instead of military black...HKP-20218Now: $7.50Was: $20.00 -
HK G36 Magazine - 30 Round
H&K Heckler & Koch
$124.95HK German G36 30 Round Magazine HK German 30-round magazine, designed to perfectly fit all G36, G36K, and G36C variants, as well as converted SL8's with the G36 magwell. These are brand-new,...HKP-00624$124.95 -
HK VP40, P30, P30L Magazine - 13 Round - .40 S&W
H&K Heckler & Koch
$49.9513 Round S&W Magazine New HK German manufacture & factory fresh manufacture. Compatible With: HK VP40, VP40 TacticaHKP-01474-M$49.95 -
HK90 Series Roller for Bolt Head 8.00mm - Standard
H&K Heckler & Koch
$27.95H&K Roller For Bolt Head 8.00mm - Standard The 8mm roller is the proper roller size for the standard "zero" function. The correct 8mm roller is essential for proper head spacing and bolt gap. New HK...HKP-00506$27.95 -
Out Of Stock
HK USP Full Size Magazine Floorplate - 9mm, .40 S&W - 13,15 Round - Extended
H&K Heckler & Koch
$29.95Heckler and Koch 9mm and .40 S&W Extended Floor Plate for Full Size HK USP Each new HK German extended floor plate provides additional room for your pinky on the full-size USP 9mm or .40 pistol. An...HKP-02478$29.95 -
On Sale
HK VP9, P30 Magazine Floorplate Extension - 9mm, .40 S&W
HKP HK Parts
$17.47 - $24.95HKP HK Parts 9mm Magazine Extension Floorplate for HK VP and HK P30 Extended baseplate that adds about .30" in length to the bottom of the magazine and replaces the stock floor plate on the VP9/P30...HKP-17631-M$17.47 - $24.95 -
HK Semi Shelf Weldment - Metal Grip Housing
HKP HK Parts
$14.95HKP Semi Shelf Weldment Metal Grip Housing For Semi-Auto Trigger Packs This HK German specification metal trigger frame weldment is designed for converting SEF style housings from full auto to...HKP-16657$14.95 -
Out Of Stock
HK416, MR556 Slim Line Buttstock
H&K Heckler & Koch
$97.95Heckler and Koch HK416, MR556 Slim Line Retractable Stock New from HK Germany the slim line retractable stock fits all commercial & mil-spec AR-15/M16 buffer tubes. Marked with the HK logo and issued...HKP-16244$97.95 -
HK91, G3 Recoil Spring
H&K Heckler & Koch
$7.95HK German G3, 91, PTR Recoil Spring Best price in the country, on a new German HK factory recoil spring. No surplus or used springs here. Factory-fresh and HK German. Stock up at this price you can...HKP-00360$7.95 -
HK Rear Sight Oval Washer
HKP HK Parts
$2.95HKP Rear Sight Oval Washer HK German oval washer for the rear sight diopter style assemblies. This is the needed washer used in conjunction with the locking washer. Fits and works with all...HKP-00870$2.95