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 MP5, HK33, HK53, HK93, HK91 Housing - 3 Position 0,1,3 Pictogram - Clipped and Pinned
H&K Heckler & Koch
$249.95H&K MP5, 93/53/33, 91 (9mm, .40/10, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Housing - Clipped & Pinned Introducing the universal 3 position burst pictogram housing for HK MP5, SP5, and .40/10 firearms. This new factory...HKP-19801$249.95 -
HK45, P30L International Holster - RH- Coyote Brown
Comp-Tac
$81.95HK 45, P30L International Holster - Right Hand - Coyote Brown The International is an outside the waistband holster with a modular mounting design giving the user 16 holster options in 1. Designed to be worn at 3:00 this holsters is perfect for...HKP-19680$81.95 -
HK G36, SL8 Red Dot Kit - Dual Optics
H&K Heckler & Koch
$899.95HK G36, SL8 Red Dot - Brand new HK German OEM Factory HK G36/SL8 top red dot. brand new with factory battery installed. This can be used to replace worn or broke dual optics as well as it could be made to fit as a stand alone optic with a little...HKP-19552$899.95 -
On Sale
HK MP5 Parts Kit - 9mm
Now: $1,449.99Was: $1,929.95HK German MP5 made with Swiss Marked & Proofed HK MP5 Parts Kit Includes: German demilled HK front sight tower assembly and sling loop German HK cocking tube assembly complete German HK trunnion with magwell section attached to the demilled...HKP-19477Now: $1,449.99Was: $1,929.95 -
HK VP9, VP40 Accessory Kit
HKP HK Parts
$254.95HKP HK VP9/VP40 Accessory Kit Includes: Comp Weight - HKP-21080-M Magazine Extension - HKP-21108-M Magwell - HKP-17802-M Slide Plate - HKP-17676-M Compatible With: HK VP9, VP9 Tactical, VP40, VP40 Tactical NOT compatible with VP9L, VP9A1 F, VP9A1 KHKP-18695-M$254.95 -
HK P30 Conversion Barrel - .40 S&W to .357 SIG - Non-Threaded
RCM
$237.50RCM HK P30 .40 Cal S&W To .357 Sig Conversion Barrel - Non-Threaded Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the best barrel for the HK P30 .40 S&W. This ...HKP-17505$237.50 -
HK USP Compact Barrel - 9mm - 3.58"
H&K Heckler & Koch
$270.95H&K USPC 9mm Barrel Compatible With HK USPC 9mmHKP-01526$270.95 -
Out Of Stock
HK416, MR556 Magazine Floorplate - 5.56 / .223 - 10,20,30 Round - Complete
H&K Heckler & Koch
$10.95HK German HK 416, MR556 Floor Plate Extension Complete All steel HK Marked 30, 20 & 10 round floor plates. Each unit comes complete with the rubber bushing installed in the maritime finish. It is a great spare to have on hand as these do break...HKP-15209$10.95 -
HK G36, SL8 Bolt Head Ejector - USA
$13.95HK G36/SL8 Ejector For All G36, SL8 bolts -US MadeHKP-18371$13.95 -
Out Of Stock
HK PSG1, MSG90 Trigger Shoe Adjustment Tool
H&K Heckler & Koch
$19.95HK German Factory PSG-1, MSG90 Trigger Shoe Adjustment Tool A custom tool that allows you take the trigger shoe on and off and make Compatible With: HK PSG1 & MSG90 trigger shoesHKP-18181$19.95 -
HK91, G3 Trigger Pack - Complete - Semi Auto
H&K Heckler & Koch
$348.95H&K G3/91 (7.62x51/.308) Complete Trigger Pack - Semi Auto HK German manufactured trigger pack complete with all the parts being professionally converted from a factory German F/A trigger pack to semi-only. Compatible With: HK91, G3, PTR...HKP-00217$348.95 -
Out Of Stock
HK91, G3 Complete Bolt Head - HK Contract FMP - Used
H&K Heckler & Koch
$59.95HK CONTRACT FMP - HK G3 & HK 91 & PTR Bolt Head Complete Made on HK tooling & prints in Portugal in the 1980's. Each used bolt head is complete with all parts installed & 100% functional. Removed from de-milled FMP HK G3 rifles. Each bolt...HKP-17628$59.95