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 SP5K Spec Only 9mm SEF Navy Style Housing - Clipped and Pinned - USED
H&K Heckler & Koch
$149.95H&K SP5K Spec Only 9mm SEF Navy Style Housing - Clipped & Pinned - USED Hand-selected for the highest quality, these "like new" H&K SP5K SEF style trigger housings have been meticulously clipped and pinned to fit the correct SP5K style shelf...HKP-20064$149.95 -
HK VP9B Push Button Mag Release Tool
H&K Heckler & Koch
$17.99Heckler and Koch Push 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: VP9B NOT compatible with VP9A1 F, VP9A1 KHKP-19747$17.99 -
HK91, G3, PTR Backplate, Recoil Rod Assembly - Parkerized
H&K Heckler & Koch
$34.95Parkerized Backplate - HK91, G3, PTR Surplus German HK backplate that has been refinished and reparkerized.HKP-19692$34.95 -
HK P30L Recoil Rod Assembly - Complete
H&K Heckler & Koch
$97.95Heckler and Koch Complete Recoil Rod Assembly for HK P30L 9mm Genuine German HK recoil rod assembly for the P30L 9mm. A fresh factory recoil spring restores proper cycling and ensures the pistol functions to original HK specifications. Compatible...HKP-02485$97.95 -
HK USP Magazine Follower - 9mm, .40 S&W
H&K Heckler & Koch
$9.95HK USP 9mm / 40 S&W Magazine Follower Compatible With: HK USP 9mm HK USP .40HKP-02164-M$9.95 -
HK91, G3 Lower, Complete - SEF Full Auto - Green - Surplus
H&K Heckler & Koch
$349.95HK Heckler and Koch Complete Full Auto Steel Green Lower SEF from Surplus Stock for HK91, G3 Each lower includes a complete full-auto trigger pack, selector lever, green grip, metal SEF grip frame, and grip screw with washer. All parts are installed and...HKP-16215$349.95 -
On Sale
HK416, MR556, HK417, MR762 Flash Hider - G28 Style - Threaded 15x1
MFI
Now: $67.95Was: $79.95MFI HK G28 Style Flash Hider - Threaded 15x1 The G28, 2nd Gen flash hider is threaded 15x1 RH pitch, which is a standard HK Thread Pattern for .308 and .223 caliber weapons. It also has a deep counter bore to allow the product to cover the area behind...HKP-16337Now: $67.95Was: $79.95 -
On Sale
HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - HKP
HKP HK Parts
Now: $39.95Was: $49.95HKP MP5K/SP89/SP5K 9mm End Cap - HK Style This end cap is an identical reproduction of the factory end cap and features the original HK style buffer. Compatible With: MP5K SP5K SP89 In spec. clones and custom buildsHKP-16135Now: $39.95Was: $49.95 -
HK MP5, MP5K, HK33, HK53, HK93 Optic Mount - Raised - Aimpoint ACRO P-2
HKP HK Parts / Aimpoint
$708.95HK MP5 Aimpoint ACRO P-2 with HKP Raised Optic Mount The HKP Raised optic mount was designed to elevate the ACRO P-2 sight to a height that is both comfortable and easy to view, while retaining an unobstructed view of the factory sights. Get the best of...HKP-21895-M$708.95 -
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 -
Out Of Stock
HK MP5K 3 Position (0,1,F Pictogram) Navy Style Ambidextrous Housing - Push Pin
H&K Heckler & Koch
$369.95H&K MP5K 3 Position (0,1,F Pictogram) Navy Style Ambidextrous Housing - Push Pin - 9mm This is a factory German push pin style housing. HK marked and new latest factory fresh production. Specifications: 3 Position Pictogram Markings: 0,1,F Navy...HKP-17143$369.95 -
HK MP5 2-Stage Trigger Group - 9mm - Complete
Timney Triggers
$478.95Timney HK MP5 Trigger - 9mm - 2 Stage - Complete The SEF Timney trigger group comes completely assembled, ready to drop into your receiver. Features a 3rd generation German ejector lever, new SEF selector lever, and a brand new factory German housing...HK-20511-M$478.95