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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HK45, HK45 Compact, P2000, P2000SK Slim Slide Release Lever with Axle
H&K Heckler & Koch
$30.95HK Slim Slide Release Lever w/ Axle This is the upgraded version that replaced the original early versions. This model has enhanced upgrades to update and improve your HK pistol's function and design...HKP-01956$30.95 -
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 -
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 MP5, MP5K Rear Sight Base
HKP HK Parts
$19.95HKP HK Parts Rear Sight Base - Weldment for HK MP5 and HK MP5K The only factory-correct sight base with the factory HK German side axis grooves. Compatible With:HKP-02450$19.95 -
On Sale
Handstop Kit - XTM
Magpul
Now: $17.96Was: $19.95Magpul XTM Hand Stop Kit The four-piece XTM Hand Stop Kit is a lightweight, low-profile rail-mounted index point for improved weapon control or as a forward stop to prevent the shooter's hand from...HKP-14535Now: $17.96Was: $19.95 -
On Sale
HK416, MR556 C.A.R.L. - 2, 3, or 6 Round Interchangeable Cam Limiter
ST Inc
Now: $49.50Was: $55.00ST Inc Limiter Cam for HK416, MR556 ARC-Fire CARL Lever - 2, 3, and 6 Round Options Limiter cam for the ST Inc CARL lever used with the HK416 and MR556 ARC-Fire trigger setup. Available in 2, 3, and...HKP-22565-MNow: $49.50Was: $55.00 -
On Sale
HK USP9 Complete Magazine - 22 Round
HKP HK Parts / Heckler & Koch
Now: $89.06Was: $98.95HKP Complete 22 Round Magazine for USP9 Complete 22 round magazine for HK USP9 pistols. This magazine combines an HKP magazine extension with an original German Heckler and Koch magazine body to...HKP-22555-MNow: $89.06Was: $98.95 -
On Sale
HK MP5, SP5 3-Lug Faux Suppressor - MP5SD Style
MFI
Now: $151.16Was: $167.95HK MP5, SP5 3-Lug Faux Suppressor - MP5SD Style MFI replicated the classic MP5SD suppressor appearance. Designed to fit any factory spec 3-lug barrel and a perfect match with the HKPHKP-22440Now: $151.16Was: $167.95 -
On Sale
HK91, G3 Magazine - 15 Round - Refinished, BLEMISHED
H&K Heckler & Koch
Now: $33.71Was: $84.95Heckler and Koch 15 Round Steel Magazine, Refinished and marked BLEMISHED, for HK91, G3 7.62x51 / .308 MAGAZINE BODIES HAVE PITTING - CONDITION MAY VARYHKP-21922-BNow: $33.71Was: $84.95 -
HK VP9 Short Slide Release Lever - Left
H&K Heckler & Koch
$54.95H&K VP Short Slide Release Lever - Left Short Left side slide release for VP series pistols. Can be combined with 260498,HKP-22000$54.95