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 SP5 Stock or Brace Adapter - AR M4 - QD Slint Attachment Point
HKP HK Parts
$159.95HKP HK SP5 AR, M4 Brace/Stock Adapter - QD Slint Attachment Point Each AR stock, brace adapter is made from a solid billet of CNC machined aircraft grade aluminum with QD sling attachment points and Cerakote finish for the best looking AR stock adapter...HKP-20725$159.95 -
Geissele HK 416 10.5" M-LOK Handguard - DDC
Geissele
$468.95Geissele HK 416 10.5" M-LOK Handguard - DDC The super modular rail HK416 MK15 M-LOK was designed to replace the standard rail on an HK416 or MR556 weapon platform. The rail system utilizes the stock HK barrel nut, but incorporates the strength, rigidity...HKP-20225$468.95 -
Out Of Stock
HK P2000, P2000SK Night Sight Set - HK09 - Green Front, Yellow Rear
Trijicon
$139.95Trijicon HK09 Yellow Rear & Green Front night sight set for HK P2000 & P2000SK pistols Trijicon Bright & Tough Night Sights are three-dot iron sights that increase night-fire shooting accuracy five times over conventional sights. Equally...HKP-08800$139.95 -
HK91, G3, MP5 Sear Catch - Steel - New Build
H&K Heckler & Koch
$69.95Heckler & Koch's Sear Catch Release - Complete For HK 90 Series Trigger Packs New HK German manufacture. Sear/Catch complete with installed detent, spring, and roll pin. Compatible With: HK MP5, HK MP5K HK91 HK G3 HK33, HK53, HK93 PTR Other 90...HKP-01459$69.95 -
HK UMP 2 Position Complete Lower
H&K Heckler & Koch
$579.95New HK German 2 Position Lower Complete New German Heckler & Koch UMP Lower. 2 position settings (S,F). Each lower comes complete with all the factory internals. This item is ideal for the USC to UMP conversion or to keep as a spare. Compatible...HKP-19117$579.95 -
GSG9 HK G36K Handguard
GSG9
$120.95HK G36K Forearm With Hand Stop & Heat Shield HK G36K length latest production HK G36K handguard with built in heat shield. Each unit features a built in hand stop with sling attachment points. Built in hard mounting points for adding picatinny rails...HKP-18217$120.95 -
HK .45 ACP Flash Hider - 5 Prong - Threaded 16x1 LH
HDPS
$99.95HDPS .45 ACP 5 Prong Flash Hider - Threaded 16x1 LH The 5 Prong Flash Hider is designed to fit .45 ACP firearms threaded 16x1 LH This highly anticipated flash suppressor enhances accuracy by up to 35% and reduces recoil by up to 40%. With no indexing...HKP-20459$99.95 -
HK MP5K, SP89 and Zenith Model Z-5P, Z-5K M4 Retractable Stock
Choate
$239.95Choate HK MP5K/SP89 & Zenith Model Z-5P/Z-5K M4 Telescopic Stock The telescopic stock for the H&K MP5K / SP89 and Zenith Firearms models Z-5P and Z-5K replaces the existing stock and gives the shooter the ability to change the length of pull. The...HKP-19893$239.95 -
Out Of Stock
Hi-Viz HK VP9, HK P30, HK 45 Hiviz Fiber Optic Sight Set
Hi-Viz
$99.95Hiviz Fiber Optic Sight Set - HK VP9, P30, HK45 Hiviz fiber optic sight set with a laser engraved HK logo. Limited edition set. These sights are housed in a durable steel housing and feature a matte black finish. Features: Sight visibility in all...HKP-19420$99.95 -
HK417, MR762 Magazine Catch
H&K Heckler & Koch
$49.95H&K HK 417/MR762 Magazine Catch This is the actual mag catch for the MR762 and HK 417 family of firearms. A great spare to have on hand. Compatible With: HK 417 HK MR762HKP-16681$49.95 -
HK45, HK 45 Tactical Backstrap - Small - Black
H&K Heckler & Koch
$14.95H&K 45/45 Tactical Backstrap - Small - Black New HK Manufacture. This item allows you to customize the way your firearm feels in your hand. As this is the smaller backstrap it is an excellent choice for smaller hands or female shooters. Compatible...HKP-01672$14.95 -
Out Of Stock
$8.95