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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HK91, G3 Handguard - Slimline Style - Used Good
H&K Heckler & Koch
$17.45Used Authentic German Military Surplus Black Slim Line Forearm With Heat Shield Very good condition. For the money, these are a nice addition to the collection. Compatible With: all full forearm length HK 91, G3, PTR style firearmsHKP-18316$17.45 -
HK MP5, SP5K, HK94 Optic Mount - Mid Range
B&T Brugger & Thomet
$119.95B&T MP5, SP5, 94 - Mid Range Scope Mount Includes a witness hole so you can use iron sights with the mount installed. B&T Switzerland is a world leader in arms innovation. This same mount is in use by several militaries around the world. Buy with...HKP-16877$119.95 -
HK MP5 Stock or Brace Adapter - Picatinny Rail
HKP HK Parts
$119.95HKP HK MP5 Picatinny Rail Brace/Stock Adapter Our rail stock adapter allows you to attach any 1913 Style Stock or brace to your MP5. The 1913 style stocks & braces lock in place and provide a better cheek weld hieght option than many traditional...HKP-21426$119.95 -
HK MP5 Bolt Carrier - Semi Auto
RCM
$146.95RCM HK MP5 Semi Auto Carrier New RCM manufactured MP5, 94 F/A carrier with all current "F" style upgrades and tungsten filled for the best performance and the utmost reliability. Machined completely from billet ordnance grade steel to exact HK German...HKP-20981$146.95 -
HK G36 FBI 0,1 Lower Complete
$499.95HK German G36, G36K, G36C - FBI (0,1) Lower This is a popular item for use on the SL8 to G36 conversions. The (0,1) G36 lowers are hard to obtain, and availability is limited.HKP-00628$499.95 -
Out Of Stock
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - LEO Marked - Like New
H&K Heckler & Koch
$199.95HK German MP5 30 Round Magazine Laser Etched LEO Markings This is a Like New H&K German MP5 9mm 30-round magazine in excellent condition. All MP5 magazines are police department trade-in items featuring laser-etched LEO/Restricted markings. These...HKP-20517$199.95 -
HK VP9, VP9SK, VP40 Sear Spring
H&K Heckler & Koch
$9.95H&K VP9/VP9SK, VP40 Catch Pressure Spring Compatible With: HK VP9 HK VP9SK HK VP9A1 F, VP9A1 K HK VP40HKP-16800$9.95 -
HK UMP, USC Cocking Handle Pin
H&K Heckler & Koch
$7.95HK UMP & USC Cocking Handle Pin Compatible With: HK UMP HK USCHKP-01885$7.95 -
Magpul MS3 Sling - Gen 2
Magpul
$49.95Magpul MS3 Sling - Gen 2 Magpul Industries MS3- Multi Mission Sling System Sling Black AR Rifles 1 or 2 Point Sling.HKP-13727$49.95 -
On Sale
HK Single Point Sling - Dark Earth
HKP HK Parts
Now: $15.95Was: $29.95HKP Single Point Sling - Dark Earth This sling is a must-have for those who prefer operating with a single-point sling over the traditional 3-point HK sling. Features: Super thick all Dark Earth heavy-duty corduroy nylon to withstand years of heavy...HKP-09051Now: $15.95Was: $29.95 -
HK 91, G3 Handguard - Slimline Style - OD Green - LIKE NEW
H&K Heckler & Koch
$24.95H&K 91/G3 (7.62x51/.308) Slimline Forearm - OD Green - LIKE NEW Like new German military surplus O.D. green slimline forearm with heat shield. For use on standard contour barrels not the thicker barrel profiles. Compatible With: HK G3 HK 91 HK PTR...HKP-21477$24.95 -
HK VP9SK, P30SK Magazine - 9mm - 14 Round - Floorplate with Pinky Rest
HKP HK Parts / Heckler & Koch
$69.95HK VP9SK & P30SK 9mm – 14 Round Magazine New German VP9SK/P30SK HK manufacture 10 round magazine body, follower, spring, locking plate combined with the HK Parts +2 magazine extension installed & ready to use. This magazine has the same...HKP-20888$69.95