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 USP Compact Right Side Ambidextrous Control Lever
H&K Heckler & Koch
$29.99HK USPC Right Side Ambidextrous Control Lever Compatible With: HK USP Compact 9mm .357 SIG .40 S&W .45 USPC Tactical Will fit the HK USP Full Size but will have a lower profile than the USP full-size lever 9mm .357 Sig .40 S&W ...HKP-02275$29.99 -
Out Of Stock
HK USPC Tru-Dot Front Night Sight
Meprolight
$44.95Meprolight HK USPC Tru-Dot Front Night Sight Features: Unequaled low light performance Brightest night sights available today Used by Military & Law Enforcement All Tru-Dot sights are covered by a 12 years usable illumination warranty to original...HKP-16585$44.95 -
HK PSG1 Stock Spacer Tube
H&K Heckler & Koch
$27.95H&K PSG1 Stock Spacer Tube This is the longer of the two bars that goes towards the rear of the stock. No longer in production.HKP-16986$27.95 -
HK416, MR556 Rail System - 10.5" - Super Modular - FDE
Geissele
$499.95Geissele HK416, MR556 10.5" Modular Rail - Desert Dirt Color (DDC) 9.7 " Extended HK 416 free float rail for use with all HK 416 & MR556 uppers.Please note: On the HK416 models the sling attachment point on the gas block will need to be...HKP-16460$499.95 -
HK416, MR556 Front Sight Roll Pin
H&K Heckler & Koch
$4.95Heckler and Koch Front Sight Roll Pin for HK416 and HK MR556HKP-02659$4.95 -
Out Of Stock
HK G36 Disconnector Spring - 2 Round Burst
H&K Heckler & Koch
$9.95HK German G36 2 Round Burst Disconnector Spring For All HK Burst G36 Burst LowersHKP-12703$9.95 -
HK UMP, USC Stock Block C
HDPS
$159.95HDPS HK UMP & USC Stock Block C Each unit comes with a new push-pin design. This is the part to use with the ACE hinge part number FSM-TB (push button folding stock) and non-folding push bottom (pig nose). This is just...HKP-02613$159.95 -
HK USC to UMP Conversion ACR Stock Block
USA
$139.95HK USC To ACR Stock Adapter A new product that allows you to add the widely popular Remington ACR folding, adjustable stock to your USC-UMP conversion. This offering is for the stock block and hardware to attach your ACR stock for your HK USC when doing...HKP-17357$139.95 -
HK USC, SL8 Hammer
H&K Heckler & Koch
$98.95H&K USC/SL8 (.45 ACP/5.56/.223) Hammer Compatible With: HK USC .45 ACP HK SL8 .223/5.56HKP-16352$98.95 -
Out Of Stock
HK UMP45 Bolt Group
$369.95HK UMP .45 Tungsten Filled Semi Auto Bolt Group Complete. The semi auto bolt group is required for HK USC to HK UMP caliber conversions. Comes complete less the recoil assembly. Specifications: Tungsten filled Heat treated ParkerizedHKP-18751$369.95 -
HK23E Recoil Spring - 5.56/.223
H&K Heckler & Koch
$79.95New German HK Factory HK23E Recoil SpringHKP-02001$79.95 -
HK91, G3 Ambidextrous Trigger Pack (0,1) - Match Trigger
HKP HK Parts
$474.95HKP/H&K G3/91 (7.62x51/.308) 2 Position 0,1 Ambidextrous Match Trigger Pack Complete with custom trigger conversion to achieve a light target trigger with an ultra-smooth pull. This HK German semi-auto trigger pack has been enhanced by...hkp-18425$474.95