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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HK416, MR223 Barrel - 5.56 / .223 - 14.5" - Threaded 1/2x28 - A5 Style
HKP HK Parts
$588.95H&K 416 A5 Converted Barrel - Threaded 1/2x28 These barrels began as standard A3 style but have been precisely machined with an A5-style relief cut to fit HK416 & MR223 A5 uppers. Now, you can have a drop-in barrel for your 416/MR223 A5 upper at...HKP-21449$588.95 -
On Sale
HK MP5K Stock with Direct Fit Adapter
Magpul
Now: $149.95Was: $199.95Magpul HK MP5K Stock with Direct Fit Adapter MP5K DT Magpul stock ready to drop in on any in-spec MP5K receiver or clone. We take our AR MP5K Adapter and attach it onto a mil-spec buffer tube. We then drop it on to the new Magpul DT Carbine stock. This...HKP-21412-MNow: $149.95Was: $199.95 -
HK UMP Rear Sight Complete
OMEGA
$39.95Omega HK UMP Rear Sight Complete: All the parts needed for the rear sight on a Gideon Shadow UMP style build. New USA made parts for your build. Will only work with Gideon Shadow. Locking screw will not work with a German UMP receiver, DEF Gunz or...HKP-21266$39.95 -
PTR Flat Tip Front Sight - Gen 2 - Luminescent Green
Blitzkrieg Components
$87.95Blitzkrieg PTR Flat Tip Front Sight Gen 2 - Luminescent Green The Blitzkrieg Gen 2 HK-style front sight offers an innovative approach to this classic sighting system. Featuring a conventional flat-tipped post and a striking Tritium dot with a Lumi Green...HKP-21104$87.95 -
Streamlight TLR-7 Sub Gun Light
Streamlight
$194.95Streamlight TLR-7 Sub Gun Light Maximize your weapons platform with interchangeable rear paddle switches that allow you to customize your TLR-7® sub to your shooting style. Designed to enhance visibility and targeting capability, the lightweight...HKP-21088$194.95 -
On Sale
Muzzle Brake - .22 Full Port - Titanium
Tactical Precision MFG
Now: $42.95Was: $84.99Full Port Muzzle Brake - .22 Cal - 1/2x28 This titanium muzzle brake is designed by a master gunsmith and is one of the best and lightest on the market. The spiral port outlets along with the parabolic internal taper significantly reduces recoil while...HKP-20771Now: $42.95Was: $84.99 -
On Sale
HK VP9L Rail Mount Compensator for Threaded Barrel Gen 2
HKP HK Parts
Now: $99.95Was: $169.95HKP HK VP9L Rail Mount Compensator for Threaded Barrel Gen 2 Specifications: Length: 4 1/4 inches Height: 2 1/2 inches Weight: 5 oz. Torque: Bottom Screws - 26 inch-lbs Side Screws - 18 inch-lbs Crafted from aircraft-grade billet aluminum and...HKP-20631Now: $99.95Was: $169.95 -
Out Of Stock
HK P30, P30S Barrel - 9mm - Threaded 1/2x28 RH - Tactical
H&K Heckler & Koch
$449.95H&K P30 9mm Tactical Barrel - Threaded 1/2x28 RH Each HK German barrel now includes a factory HK German thread protector, designed specifically for threaded P30 barrels in 1/2x28. We start with a new HK German P30L barrel, professionally fitted to...HKP-19964$449.95 -
HK G36 Single Optic Carrying Handle - Incomplete
$149.95HK G36 Single Optic Carrying Handle - Incomplete Stripped. The perfect for replacement of your well worn housing or broken housing. Just install your optic and you have a like new unit.HKP-16365$149.95 -
HK416, HK MR223 M-LOK Handguard for (11")
B&T Brugger & Thomet
$279.95B&T M-LOK Handguard for HK416/MR223 (11") B&T's one-piece 11-inch M-LOK handguard for the Heckler & Koch HK416 and civilian equivalent MR223 is an amazing improvement for the combat value of these rifles. A direct replacement for the...HKP-20402$279.95 -
HK MK23 Pistol Grip - Rubber
Talon Grip
$19.99TALON Grip - MK23 - Rubber Black TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and easy. The pistol grips will not...HKP-20262$19.99 -
HK Barrel Bore Cleaner - 7.62 / .308
Other
$7.95Outers Barrel .308/7.62 Bore Cleaner From the makers of the BoreSnake. Features: Fast, quality bore cleaning system Size stamped on brass weight Washable Make your day shooting end easily with the Outers Barrel badger Bore Cleaner. With a few passes,...HKP-19921$7.95