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 German Ambidextrous Sling Pin Replacement O-Ring
H&K Heckler & Koch
$5.95H&K German Ambidextrous Sling Pin Replacement O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. Brand new factory German manufacture. This item is a common wear/breakage part that does need to be replaced from time...HKP-19985$5.95 -
HK91, G3 Magazine - .308 - 10 Round - Used
H&K Heckler & Koch
$64.95H&K 10 Round HK 91, G3, PTR .308 Magazine - Used Each HK magazine is made by using a factory German HK 20 round mag that is then professionally converted to 10 rounds. Perfect for shooting bench or prone as the 20 round magazines are to long and get...HKP-19887$64.95 -
On Sale
HK45C, P30 Holster - Sport-Tac - LH
Comp-Tac
Now: $44.95Was: $79.95Comp-Tac HK P30, HK45C Sport-Tac LH Holster The Sport-TAC Holster is a hybrid, inside-the-waistband holster designed to comfortably carry a 4" handgun at the 4-5 o'clock position. The Sport-TAC features a 600D interlock padded backing that provides...HKP-19687Now: $44.95Was: $79.95 -
HK VP9, VP9SK, VP40 Sear Release Catch Cylindrical Pin
H&K Heckler & Koch
$6.95Cylindrical Pin For Sear Release Catch VP9, VP40 Compatible With: HK VP9 HK VP9SK HK VP9A1 F HK VP9A1 K HK VP40HKP-16803$6.95 -
HK P7M8, P7M10, P7M13 Roll Pin - Gas Piston
H&K Heckler & Koch
$5.95Piston Roll Pin Compatible With: P7M8 P7M10 P7M13HKP-01399$5.95 -
Out Of Stock
HK VP9, P30, HK45C Night Sight Set - Green
Trijicon
$142.95Trijicon HK VP/45C/P30 Night Sight Set - Green Trijicon Bright & Tough Night Sights are 3 dot iron sights that increase night-fire shooting accuracy by as much as five times over conventional sights. Equally impressive, they do so with the same speed...HKP-01611$142.95 -
HK USP Lanyard Loop Insert Pin
H&K Heckler & Koch
$19.95HK USP Lanyard Loop Insert Pin Compatible With: HK USP 9mm HK USP 40 HK USP 45HKP-01930$19.95 -
HK416, MR556 Ejector For Bolt Head
H&K Heckler & Koch
$23.95Heckler and Koch HK MR556/416 Ejector For Bolt Head HK German factory part. Compatible With: HK MR556 HK 416HKP-00037$23.95 -
HK G36, SL8 Cocking Handle
H&K Heckler & Koch
$55.95HK Cocking Handle For G36 & SL8 Bolt CarriersHKP-01853$55.95 -
Out Of Stock
HK UMP Lower Backplate
H&K Heckler & Koch
$34.95HK Heckler and Koch .40 S&W, .45 ACP, 9mm Lower Backplate for HK UMP HK German Backplate for all UMP lowers. You will need to add your existing buffer or order one to make a complete buffer assembly.HKP-16473$34.95 -
On Sale
HK UMP, USC, G36, SL8 Trigger
HDPS
Now: $125.95Was: $139.95HDPS US-Made Steel Trigger - USC & SL8 HDPS US-made triggers are ideal for meeting US 922r compliance as this counts as one of the needed parts when converting the HK USC to HK semi-auto UMP and the HK SL8 to semi-auto G36. Compatible...HKP-02134Now: $125.95Was: $139.95 -
On Sale
HK91, G3 Rifle Length Handguard - Keymod
AIM
Now: $80.95Was: $89.95HK 91, G3, PTR RIFLE LENGTH HANDGUARD - KEY MOD This sleek streamlined design is an ultra low profile handguard with generous mounting space to accept all KeyMod accessories. Superior ergonomics and simple, drop-in installation makes this the best HK...HKP-18179Now: $80.95Was: $89.95