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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On Sale
Sig Sauer P365 Stand Off Device
HKP HK Parts
Now: $49.95Was: $119.95HKP SIG P365 Stand Off Device The HK Parts P365 standoff is designed to keep the slide in battery to allow discharge when the firearm is pressed against or comes into contact with an object. It is an excellent self-defense addition. Each unit is...HKP-19284Now: $49.95Was: $119.95 -
HK MP5, HK90 Series Locking Roller -2 - Standard 7.98mm - Used
H&K Heckler & Koch
$9.95HK German Locking Roller Standard 7.98mm - Used The proper roller size is essential for proper head spacing and bolt gap. Used German German-made -2 or 7.98mm roller, each roller is priced per roller. Used HK German. HK locking roller, -2, 7.98mm. HK...HKP-20600$9.95 -
On Sale
HK91, G3 Tapered Barrel - 16" - Threaded 5/8x24 RH
PTR
Now: $188.95Was: $229.95PTR HK G3/91 Tapered Barrel - Threaded 5/8x24 PTR manufactured US made barrel for the HK91, G3 & PTR style of firearms. This 16" barrel will allow you to add a threaded flash hider that is threaded 5/8x24 US threads. Specifications: Overall Length...HKP-19472Now: $188.95Was: $229.95 -
On Sale
HK VP9, VP9SK, VP40 Firing Pin with Striker - Titanium
HKP HK Parts
Now: $49.95Was: $79.95HKP HK VP9/VP40/VP9SK Titanium Firing Pin w/ Striker - Black Upgrade your VP series pistol with the HK Parts lightweight titanium. Reduced weight results in reduced lock time for faster shots and improved accuracy. A true drop in part made of the...HKP-17643Now: $49.95Was: $79.95 -
On Sale
Barrel Bore Cleaning Brush - .45 ACP
USA
Now: $1.45Was: $1.95HK .45 ACP Barrel Bore Cleaning Brush This brush is a must-have item to clean the barrel effectively, and it is compatible with all standard 8-32 threaded cleaning rods (universal/most common thread). We offer a large variety of long-lasting...HKP-02757Now: $1.45Was: $1.95 -
HK USP, USP Compact Lanyard Loop Insert
H&K Heckler & Koch
$13.95HK USP/USPC Lanyard Loop Insert Compatible With: HK USP 9mm HK USP .40 HK USP Compact 9mm HK USP Compact .40 / .357 HK USP Compact .45HKP-01935$13.95 -
HK417, MR762 Take Down Tool
H&K Heckler & Koch
$9.95H&K HK MR762/417 Take Down Tool This item is used to take down the upper receiver from the lower receiver as well as tighten down the stock movement on the E1/E2 stock. Each tool will be stored in the rear of the E1/E2 stock and may come in black or...HKP-14438$9.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Magazine Catch Spring
H&K Heckler & Koch
$9.95Heckler and Koch Magazine Catch Spring for HK 416, HK MR556 and HK417, MR762 HK German manufacture. Compatible With: HK416, MR556 M27 HK417, MR762 G28 AR15, M4, M16 firearmsHKP-02620$9.95 -
On Sale
Maglula Gen 2 AR-15 5.56/.223 Mag Loader/Unloader
Maglula
Now: $21.95Was: $26.95Maglula Magazine Loader/Unloader - Generation 2, Lula, 223 Rem/556NATO, Fits AR-15 - Black The Maglula LULA magazine loader & unloader AR-15 for 223 Remington / 5.56mm NATO is a mil-spec tool that allows you to load and unload magazines fast,...HKP-14545Now: $21.95Was: $26.95 -
On Sale
HK91, G3 Clubfoot Stock
HKP HK Parts
Now: $239.95Was: $299.95HK Clubfoot Stock HK clubfoot stock comes fully assembled with both US and German H&K parts. This stock assembly counts as one US-made part toward your 922r compliance. Compatible With: HK 91 HK G3 PTR-91, 32 Rifles HK .308 Rifles Other...HKP-01920Now: $239.95Was: $299.95 -
HK MP5K 9mm SEF Navy Style Trigger Housing - Push Pin
H&K Heckler & Koch
$159.95H&K MP5K 9mm SEF Navy Style Trigger Housing - Push Pin HK German factory SEF grip frame that has been cut to MP5K factory German specs. This style of housing is for push-pin firearms that do not require clipped and pinned housing...HKP-02463$159.95 -
On Sale
HK MP5 Barrel Extension - 9mm
HKP HK Parts
Now: $39.95Was: $49.95HKP MP5 9mm Barrel Extension The MP5 3-lug barrel extension functions as a fake suppressor to give the standard 8.85" barrel an overall length of 16" for rifle builds. The extension slips over the tri-lug adapter and is pinned into place by a...HKP-18000Now: $39.95Was: $49.95