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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HK416, MR556, HK417, MR762 Handguard Locking Screw
H&K Heckler & Koch
$16.95HK416, MR556, HK417, MR762 - Handguard Locking Screw Replacement handguard locking screw that secures the handguard to the upper receiver. Compatible With: HK HK416HKP-16601$16.95 -
HK P30SK Holster - Infidel Ultra Max
Comp-Tac
$94.95Comp-Tac HK P30SK Infidel Ultra Max Holster The Infidel Ultra Holster is an Inside the Waistband Kydex and leather hybrid holster designed for concealed carry. Created to be worn behind the hip at...HKP-17518-M$94.95 -
HK P30, P2000 Trigger Bar
H&K Heckler & Koch
$35.95H&K P30 & P2000 Trigger Bar Compatible With These Models In 9mm, .40 S&W, & .357 SIG: HK P30 HK P30LHKP-01795$35.95 -
Out Of Stock
Battle Sight - Rear
Troy Industries
$129.95Troy Industries Rear Battle Sight Durability and dead-on accuracy have made the Troy Industries Folding Battle Sight one of the best choices for Special Ops and tactical users worldwide. Easy to...HKP-00032$129.95 -
Out Of Stock
HK G36 Backplate - Recoil Buffer - US
USA
$44.95HK G36 Backplate With Recoil Buffer New G36 Backplate with new G36/SL8 recoil buffer. This is a great spare or replacement to have on hand. These are also required for those that are doing the...HKP-18538$44.95 -
HK MP5 Extractor - .40 S&W, 10mm, .357 SIG
H&K Heckler & Koch
$69.95H&K Heckler and Koch New Latest Production 1.4mm Extractor for HK MP5 .40, 10mm, .357 This is the latest and greatest upgraded extractor made by HK. This is also a great upgrade for the many...HKP-00410$69.95 -
Out Of Stock
HK A3 Retractable Buttstock Clamping Lever Spring
H&K Heckler & Koch
$19.95HK German Retractable Stock Clamping Lever Spring For A3 Retractable Stocks This spring is the most common breakage/wear item in the internal workings of the A3 retractable stock.HKP-01089$19.95 -
HK MP5F, MP5 Compression Spring - Cocking Lever Support
H&K Heckler & Koch
$9.95H&K MP5F & MP5 40,10 Cocking Support Handle Spring One of these springs is required for use with the cocking handle/support assembly. You need the following - MP5 40 cocking tube support, MP5 40...HKP-00426$9.95 -
HK MP5K, SP5K, SP89 Lower - ARC
AS Designs
$649.95AS Designs ARC Lower for HK MP5K, SP5K, SP89 The ASD ARC Lower allows for faster follow-up shots by resetting after each shot. This is a true drop-in trigger and housing assembly featuring SEMI, ARC,...HKP-22546-M$649.95 -
On Sale
HK91, G3, PTR Magazine - 10 Round - Steel - BLEMISHED
H&K Heckler & Koch
Now: $42.71Was: $89.95H&K 91/G3/MSG90 (7.62x51/.308) 10 Round Magazine - Steel - BLEMISHED MAGAZINE BODY HAS PITTING - CONDITION AND COLOR MAY VARY (see pictures) - Price is per unit. COSMETICALLY BLEMISHED PARTS ARE FULHKP-01607-BNow: $42.71Was: $89.95 -
HK P2000 MOD 1 Compensator
HKP HK Parts
$179.95HKP HK P2000 MOD 1 Compensator - Non-Threaded Barrel The HK Parts MOD 1 compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and...HKP-21815$179.95 -
HK45 E2 Magazine with Extension - 15 Round
HKP HK Parts
$113.95HKP HK Parts 15 Round E2 Magazine for HK45 HK45 and HK45 Tactical +5 magazine extension. Paired with a new HK German 10 round HK45 magazine for a total capacity of 15 rounds. Ideal for competition...HKP-21803-M$113.95