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 UMP, USC Recoil Buffer
HKP HK Parts
$11.95HKP USC & UMP Recoil Buffer Replaceable spare lower housing or buffer for buffer housings. This is a high wear & replacement item and a must have for spare parts. Compatible With: HK USC .45 HK UMP modelsHKP-18746$11.95 -
HK MP5, MP5K Magazine Block - 30 to 10 Round Conversion - Curved
Raddlock
$9.95Magazine Block Plug To Reduce HK MP5 30 Round Magazine To 10 rounds MP5 10/30 mag block. This is designed to be used on the HK MP5 30 round, curved, steel magazine. Very easy to install & use. Compatible With: MP5 & MP5K 30 round, curved...HKP-02434$9.95 -
HK MP5, Zenith, Omega Bench Mat
HKP HK Parts
$24.95HKP Bench Mat - MP5, Zenith, Omega The HK Parts MP5 mat is the perfect cleaning and repair mat designed specifically for your Heckler & Koch MP5. Have fun and learn while you work on your favorite H&K firearm. The soft top protects your gun from...HKP-17066$24.95 -
HK VP9, VP9SK Left Side Charging Support
H&K Heckler & Koch
$5.95Charging Support, Cocking Aid - Left Side - VP9 & VP9SK Replacement cocking aid for the slide. German HK. Compatible With: VP9 VP9 Tactical VP9SKHKP-16824$5.95 -
HK416, MR556, MR762 Trigger Guard Pin
H&K Heckler & Koch
$9.95HK MR556 & HK 416 Trigger Guard Retaining Pin Compatible With: HK 416 HK MR556HKP-02678$9.95 -
UZI Lower with Grip Complete
IMI
$99.95Uzi Lower Complete - IMI Manufactured For The German Military Surplus IMI Manufactured Uzi Grip (lower) complete with all internals as shown. Each lower comes complete with all internals, grips and mag release assembly installed. Perfect for spare parts...HKP-16683$99.95 -
HK MP5SD Barrel Port Cleaning Brush
HKP HK Parts
$69.95HKP HK MP5SD 9mm Barrel Port Brush The HKP MP5SD barrel port brush can be rotated in either direction for stiffer or softer cleaning when using our proprietary handle. Compatible with any brush handle featuring the factory thread pitch. Compatible...HKP-20989$69.95 -
HK VP9, HK45 Series Extractor Spring
H&K Heckler & Koch
$5.95HK VP9/45/P Series Extractor Spring A must-have repair and replacement part and a recommended part to change out when doing routine maintenance on your HK pistol. Compatible With: HK45 HK45C HK P30/P30L HK P30SK HK P2000 HK P2000SK HK VP9 HK VP9A1 F HK...HKP-01501$5.95 -
HK Rifle Magazine and Receiver Cleaning Brush
H&K Heckler & Koch
$24.95HK Receiver & Magazine Cleaning Brush For All HK's Fits all standard 8-32 US thread cleaning rods. Made and designed for cleaning the HK magazines as well as the upper and lower receivers and mag wells. Works with HK and non-HK applications alike.HKP-00141$24.95 -
HK German Roller +2 - Used - 8.02mm
H&K Heckler & Koch
$7.95H&K German Roller +2 - Used - 8.02mm Used HK standard (8.02 mm) locking roller. The proper roller size is essential for proper bolt gap. HK German Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the...HKP-19366$7.95 -
HK USP Full Size Optic Plate - Trijicon RMR / SRO, Holosun 407C / 507C - Red Dot Pistol Mount
Evolution Gun Works
$49.95Evolution Gun Works HK USP Full Size Trijicon RMR-SRO, Holosun 407C-507C Mount Includes: Mounting hardware Features: Material: 7075 aluminum Coating: matte black hardcoat Overall length: 1.780" Overall width: 1.1" Mounting hardware: (2) 6-32...HKP-20042$49.95 -
HK MP5 Picatinny Mount Base - Battle Steel
Botach Tactical
$59.95Botach Tactical Battle Steel HK MP5 Mount - Picatinny Base Botach Tactical Battle Steel Ultra-Low-Profile Mount for HK MP5/HK33/HK53 Firearms. Compatible With: HK MP5 & MP5K HK33/53/93 MAC-5 clones may require custom fitment. Modified...HKP-19807$59.95