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
HKP 2 Point Leather Sling - OD Green
HKP HK Parts
Now: $39.95Was: $49.95HKP 2 Point Leather Sling - OD Green These new HK Parts 2-point slings are based off of the original German HK design that are no longer offered. This is a 1st time offering, handcrafted by a German artisan. Made in the USA from quality leather and...HKP-20164Now: $39.95Was: $49.95 -
On Sale
HKP Shirt - Short Sleeve - Gray
HKP HK Parts
$11.95 - $12.95HKP Short Sleeve Shirt - Gray Get your hands on some of our premium new apparel! Featuring our sleek new logo printed over soft cotton, this shirt is certain to catch an eye at the range! Features: Unisex fit Fine cotton High fidelity DTG...HKP-21021-M$11.95 - $12.95 -
On Sale
HK Linear Compensator - Threaded 5/8x24 RH - 5.56 and .308
HKP HK Parts
Now: $87.95Was: $149.95HKP (5.56/.223) and (7.62x51/.308) Linear Compensator - Threaded 5/8x24 RH Linear compensators give you the best of both worlds. Remove the outer blast shield for standard compensator and muzzle break functionality. Or, keep it on as a courtesy to the...HKP-19338Now: $87.95Was: $149.95 -
On Sale
HK USP Night Sight Set
Trijicon
Now: $107.95Was: $127.95Trijicon - Tritium Night Sight, Fits HK USP, Green/Green, 3 Dot 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...HKP-01609Now: $107.95Was: $127.95 -
HK USP 9mm, .40 S&W Magazine Loader
H&K Heckler & Koch
$19.95H&K HK USP 9mm / .40 S&W Magazine Loader - Black Factory new Heckler & Koch. Compatible With: HK USP 9mm HK USP .40 S&W HK USP .357 SIG Please Note: This does not fit USP .45 magazines.HKP-01165$19.95 -
Out Of Stock
HK416, MR556 Magazine Release Button
H&K Heckler & Koch
$16.95Heckler and Koch Magazine Release Button for HK416 and HK MR556 New HK German Manufacture. Compatible With: HK416, MR556 AR15, M4, M16 firearmsHKP-02656$16.95 -
HK MP5SD Locking Piece - 115 Degree - 9mm
H&K Heckler & Koch
$179.95HK German MP5SD Factory Locking Piece MP5 "action" SD locking piece is the current factory-correct locking piece for the MP5SD. For optimal results, use the action 3 or F bolt head for the most reliable feeding and extraction. These upgrades work...HKP-00135$179.95 -
HK MP5K Apparel - Hats, Patches, and Shirts - V2
HKP HK Parts
$0.00HKP HK MP5K Apparel and Patch Collection - Version 2 Represent your platform with the HK Parts K Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and clean, understated design, this collection delivers premium...HKP-22455-M$0.00 -
On Sale
HK21, HK11 Barrel - 7.62 / .308 - 14.5"
RCM
Now: $599.95Was: $684.95RCM HK21 and HK11 Barrel - 14.5" RCM HK11 barrels are expertly crafted from mil-spec 41V50 CHF blanks and are fully salt bath nitrided, delivering exceptional wear and corrosion resistance. These hybrid barrels feature an E cut barrel face and are...HKP-21631Now: $599.95Was: $684.95 -
HK91, G3 Magazine Pouch - Used
H&K Heckler & Koch
$18.99H&K 91/G3/MSG90 (7.62x51/.308) Pouch - Used Compatible With Magazines for the Following Applications: HK 91 HK G3 HK PSG-1 HK MSG-90 PTR-91 Vector 51 Century HK 308 Other custom HK91/G3 style builds and clonesHKP-21555$18.99 -
On Sale
HK UMP, USC, G36 Flat Trigger
HKP HK Parts
$79.95 - $99.95HKP HK UMP/USC & G36 Flat Trigger Our flat trigger has spaced out serrations at the face of the trigger for a superior grip. Chamfered edges prevent the trigger face serrations from cutting into the operator's hands over prolonged range sessions...HKP-20766-M$79.95 - $99.95 -
Out Of Stock
HK MP5, HK53, HK53, G3 Contract Housing - 3 Position S,U,O Pictogram - Clipped and Pinned - 9mm, 5.56 / .223, 7.62 / .308 - Like New
Other
$119.95HK MP5, HK93 HK53, G3 (9mm, 5.56/.223, 7.62/.308) 3 Position (S,U,O Pictogram) Contract Housing - Clipped & Pinned - Like New Upgrade your HK93 or HK53 with this S,U,O polymer lower housing, a Malaysian contract housing designed for SEF type trigger...HKP-20031$119.95