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 SL8 Complete Rear Sight
H&K Heckler & Koch
$99.95H&K HK SL8 Complete Rear Sight This item can be used on other applications as well as the SL8, G36 models.HKP-16354$99.95 -
HK G36 Bolt Group - Semi-Auto - Complete
GSG9
$799.95GSG9 - HK G36 Semi-Auto Bolt Group Compatible With: HK G36 HK G36K HK G36C This will not work with a HK SL8.HKP-18944$799.95 -
HK VP40 Right Side Charging Support
H&K Heckler & Koch
$4.95H&K HK VP40 Right Side Charging Support - Black Compatible With: HK VP40 NOT for use with the VP9HKP-17685$4.95 -
HK416, MR556 Charging Handle Roll Pin
$7.95HK 416, MR556 Roll Pin for Charging Handle - HKP This is the shorter one that is used on the inside of the charging handle. There are two of these pins used per charging handle.HKP-16536$7.95 -
HK P30 Grip Wrap for Large Backstraps - Granulate
Talon Grip
$19.99TALON Grip - H&K P30 - Granulate Black - Large Backstrap TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and...HKP-20251$19.99 -
On Sale
HK45C, P30 Holster - Sport-Tac - LH
Comp-Tac
Now: $44.95Was: $79.95Comp-Tac HK P30, HK45C Sport-Tac LH Holster 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 features a 600D interlock padded backing that provides...HKP-19687Now: $44.95Was: $79.95 -
Out Of Stock
HK Mark 23 Tactical Barrel .45 ACP - 5.87" - Threaded 16x1 LH
RCM
$250.00RCM HK Mark 23 .45 ACP Tactical Barrel - Threaded 16x1 LH US-made HK Mark 23 tactical threaded barrel designed for use with a wide variety of flash hiders and sound suppressors. Unlike the factory HK Mark 23 barrel with 16x1 right-hand...HKP-17443$250.00 -
Out Of Stock
HK Mark 23 6.3mm Standard Rear Sight
H&K Heckler & Koch
$64.95HK Mark 23 Rear Sight - 6.3mm - Unmarked Other Rear Sight Heights: 5.5mm (-8) 5.9mm (-4) 6.3mm (standard) 6.7mm (+4) 7.1mm (+8) 7.5mm (+12)HKP-01620$64.95 -
Out Of Stock
HK VP9, P30, HK45C Night Sight Set - HD XR - Yellow
Trijicon
$184.95Trijicon HK VP/45C/P30 HD XR Night Sight Set - Yellow Front Outline The Trijicon HD XR Night Sights were specifically designed with the ever-evolving challenges of law enforcement agencies in mind. Building on the features of the current HD Night...HKP-18271$184.95 -
HK P2000SK Complete Recoil Spring Guide Assembly
H&K Heckler & Koch
$145.95HK P2000SK Complete Recoil Spring Guide Assembly Brand new HK German manufacture. Compatible With: P2000SK 9mm P2000SK .40 P2000SK .357HKP-01577$145.95 -
HK416, MR556, HK417, MR762 Brass Catcher
B&T Brugger & Thomet
$289.95B&T Picatinny Rail-Mount Brass Catcher This B&T brass catcher is quick and easy to install on to your factory picatinny mount equipped handguard. If your handguard does not have a picatinny rail to mount the brass catcher, you can simply...HKP-16899$289.95 -
HK UMP (.40 S&W/.45 ACP/9mm) Lower Backplate
H&K Heckler & Koch
$34.95H&K UMP (.40 S&W/.45 ACP/9mm) Lower Backplate HK German Backplate for all UMP lowers. You will need to add your existing buffer or order one to make a complete buffer assembly.HKP-16473$34.95