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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Out Of Stock
HK VP9 F3 Trigger - Full Flat Face
Lazy Wolf
$139.95LWG - HK VP9 F3 Trigger – Black Cerakote In a collaboration with Lazy Wolf Guns, HK Parts offers the finest drop-in, aftermarket triggers for your HK VP9 & VP40 handguns. Features:HKP-20818$139.95 -
Out Of Stock
HK G36 Magwell
H&K Heckler & Koch
$79.95H&K HK G36 Magwell - Black Factory German G36 magwell. Great for a replacement component or a critical piece of the puzzle when converting an SL8 to a G36. Compatible with factory HK and Magpul G36...HKP-00625$79.95 -
On Sale
HK P30 Tactical Barrel - .40 S&W - 4.45" - Threaded 9/16x24 RH
RCM
Now: $202.50Was: $225.00RCM HK P30 .40 S&W Tactical Barrel - Threaded 9/16x24 RH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest...HKP-16714Now: $202.50Was: $225.00 -
HK P2000 Conversion Barrel - .40 S&W to .357 SIG
RCM
$239.95RCM HK P2000 .40 to .357 Conversion Barrel This is a great spare or replacement barrel to have on hand. Also, a popular barrel to convert the P2000 .40 to .357. Compatible With: <HKP-20580$239.95 -
HK VP40, HK P30 Series Magazine - 22 Round - .40 S&W - Red
H&K Heckler & Koch
$99.95Heckler and Koch 22 Round .40 S&W Red Magazine for HK VP40, HK VP40 Tactical, HK P30, HK P30L, and HK P30S HK Parts +10 magazine extension coupled with a 13 round 40 caliber factory German magazine...HKP-20184$99.95 -
Out Of Stock
Thread Protector - 9mm - 13.5x1 LH - Titanium
HKP HK Parts
$29.95HKP 9mm Titanium Thread Protector - Threaded 13.5x1 LH This billet-machined titanium thread protector with a DLC finish fits all 13.5x1 LH-threaded barrels. Its unique design covers and protects...HKP-19724$29.95 -
HK45 Series, USP Series Slide Plate
H&K Heckler & Koch
$9.95H&K HK USP Series/45 Series Slide Plate Compatible With: HK USP 9mm, USP .40 HK USP .45HKP-01177$9.95 -
On Sale
HK VP9, P30 Compact Paddle Holster
Safariland
$30.57 - $47.95Safariland Compact Paddle Holster for HK VP9 and HK P30 The Safariland 578 GLS HK Pro-fit holster is a multi-purpose holster primarily designed for concealment and comfort. With minor adjustments...HKP-17549-M$30.57 - $47.95 -
HK416 Retractable Buttstock - Factory
H&K Heckler & Koch
$129.95HK 416 & AR15 6 Position Retractable Stock New HK Marked 6 position AR15 commercial stock. This stock fits all commercial AR-15/M16 buffer tubes. The stock telescopes expands and retracts to 6...HKP-00049$129.95 -
HK Rear Sight Adjustment Tool - Red Handle
H&K Heckler & Koch
$123.95H&K German Red Handled Rear Sight Adjustment Tool A must-have sight tool for all HK 90 series rifles, as well as the HK 416, MR556, and HK 417 rifles. Works to adjust any rear diopter-type HK sight...HKP-00080$123.95 -
HK91, G3 Trunnion - Used
H&K Heckler & Koch
$39.95HK German HK G3 & HK 91 Trunnion - Used These trunnions are from demilled G3 parts kits and will have leftover receivers and barrel stubs installed along with factory barrel pins. Please note the...HKP-00718$39.95 -
On Sale
HK416, MR556 ARC-Fire Trigger - V2 with 416 Selectors - 2, 3, 6 Round Options
AS Designs / ST Inc
Now: $224.95Was: $279.95AS Design HK416, MR556 V2 ARC-Fire Trigger with 416 Selectors, 0-90-180 and 0-45-90 Position Options, and 2, 3, and 6 Round Options AS Designs' ARC-Fire (Active Reset Clutch) trigger is an innovative...HKP-22707-MNow: $224.95Was: $279.95