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 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 -
On Sale
HK USP Full Size Optic Plate - Trijicon RMR / SRO, Holosun 407C / 507C - Red Dot Pistol Mount
Evolution Gun Works
Now: $44.95Was: $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-20042Now: $44.95Was: $49.95 -
On Sale
HK MP5, Zenith, Omega Bench Mat
HKP HK Parts
Now: $19.95Was: $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-17066Now: $19.95Was: $24.95 -
On Sale
HK91, G3, HK33, HK53, HK93 Cocking Handle Spring
HKP HK Parts
Now: $2.95Was: $3.95HKP Cocking Handle Spring The cocking handle spring is a medium wear component and should be replaced intermittently. Grab a spare to keep with your maintenance gear in case of failure in the field too. Compatible With: HK G3, 91, PTR91 HK...HKP-02465Now: $2.95Was: $3.95 -
On Sale
HK UMP, USC Top Receiver Rail - Enhanced - Picatinny
HKP HK Parts
Now: $39.95Was: $49.95HKP HK Parts US Made Top Receiver Rail with Hardware for HK USC and UMP The extended length allows the use of all optics that fit on a Picatinny rail. This unit has a contoured, no-snag design for ease of use and a beautiful fit. Made from billet...HKP-14541-MNow: $39.95Was: $49.95 -
On Sale
HK MP5 Handguard - Suppressor Length - M-LOK
MI Midwest Industries
Now: $170.95Was: $189.95MI HK MP5 M-LOK Suppressor Length Handguard The Midwest Industries M-LOK suppressor handguard is designed to fit over your suppressor for extra protection and extending mounting options. Made in the USA from 6061 aluminum for a lifetime of...HKP-21556Now: $170.95Was: $189.95 -
On Sale
HK MP5SD Barrel Port Cleaning Brush
HKP HK Parts
Now: $55.95Was: $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-20989Now: $55.95Was: $69.95 -
On Sale
HK MP5 Picatinny Mount Base - Battle Steel
Botach Tactical
Now: $50.95Was: $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-19807Now: $50.95Was: $59.95 -
On Sale
HK MP5, HK94 Recoil Rod Assembly - US
USA
Now: $33.95Was: $37.95HK MP5, SP5, & HK94 Recoil Rod Assembly - Complete And Micro-Polished All stainless steel rods and ends. This is a great item to have on hand as a spare part. Compatible With: HK MP5, HK SP5, HK94 HK MP5SD HK MP5 full-size clones and...HKP-02168Now: $33.95Was: $37.95 -
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 -
Out Of Stock
B&T APC45, SPC45, GHM45 Magazine - 25 Round
B&T Brugger & Thomet
$145.00B&T .45 ACP 25 Rounds Magazine B&T's APC45 replacement magazines are the same straight-body stick mags that ship with new B&T firearms. These high quality factory magazines hold 25 rounds of .45 ACP ammunition...HKP-17438$145.00 -
On Sale
UZI Lower with Grip Complete
IMI
Now: $89.95Was: $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-16683Now: $89.95Was: $99.95