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 MP5, HK90 Series Front Night Sight - Standard Dot - Tritium
XS Sights
$92.95XS Sights Tritium Night Sight - Standard Dot Standard Dot front sights use a patent-pending glow dot that absorbs light and glows in low light levels before it is dark enough to see the tritium. Green is a great option for low light and has a very...HKP-19602$92.95 -
Out Of Stock
HK UMP Barrel - .45 ACP - 8" - Threaded 16x1 LH with 3 Lug
HDPS
$399.95HK UMP .45 ACP Barrel - Threaded 16x1 LH - 3-Lug New USA made .45 ACP 8" barrel for the UMP or Omega firearms. Each barrel is threaded 16x1 LH and 3-lug tipped. The finest barrel for the UMP .45 ACP on the market. Specifications: Threaded 16x1...HKP-18678$399.95 -
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 G3 Standard Buffer Locking Plate
H&K Heckler & Koch
$1.49H&K G3 Standard Buffer Locking Plate This is the plate used with the large buffer screw in the standard buffer.HKP-16982$1.49 -
Folding Grip - Quick Detach - Low Profile
UTG
$54.95UTG Quick Detach Low Profile Folding Grip Features: Unique knurled surface for the most solid grip Smart Posi-Lock cross bolt and spring tensioned locking plate with steel insert for the most secure installation Fully adjustable quick detachable...HKP-15029$54.95 -
HK91, G3 20 Round Magazine - Steel - Refinished
H&K Heckler & Koch
$57.95HK German 20 Round Steel Magazine - Refinished HK G3 factory steel 20-round magazine, expertly restored to its former glory. This magazine has been meticulously refinished inside and out, featuring a polished follower along with a fully parkerized finish...HKP-21587$57.95 -
HK P30L Lightcomp™
HKP HK Parts
$387.95HKP P30L Lightcomp™ (Patent Pending) Traditionally, adding a compensator and a weapon light to your pistol would require purchasing the light and the comp. In a perfect world, that combo would optimally locate the weapon light switches for...HKP-21427$387.95 -
On Sale
HK Men's Shirt - Long Sleeve - Bundesadler - Black
HKP HK Parts
$19.09 - $29.95HKP Mens Long Sleeve Bundesadler Shirt - Black 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: 100%...HKP-21179-M$19.09 - $29.95 -
HK MP5K, SP89 Receiver Flat with Weldment Set
HKP HK Parts
$239.95HKP - MP5K, SP89 Receiver Flat With Weldment Set New MP5K receiver flat and weldment set combined for the best complete build option on the market. Made by the original German tool and die maker of the LSC receiver flat utilizing factory original German...HKP-20882$239.95 -
HK VP9, P30, P2000, P2000SK, USPC Magazine Pouch - Single - 9mm and .40 S&W - PLM
Comp-Tac
$39.95Single Magazine Pouch - PLM - VP9, P2000, USPC The Single Magazine Pouch - PLM is an all Kydex® magazine pouch which gives a smooth friction free surface perfect for a quick reload. The Single Magazine Pouch- PLM attaches to the belt with a...HKP-19866$39.95 -
HK45C, USPC Magazine Extension - 12 Round - Red
HKP HK Parts
$84.95HKP 12 Round HK 45C, HK USPC .45 ACP Magazine - Red HK Parts magazine extension +4 adds 4 additional rounds to the HK45C, 8 round magazine. Each unit is then fully assembled as a 12 round HK45C magazine. Ideal for competitive shooters, concealed carry or...HKP-18673$84.95 -
Out Of Stock
HK45 Tactical Barrel - .45 ACP - 5.15" - Threaded .578x28 RH
RCM
$250.00RCM HK45 .45 ACP Tactical Barrel - Threaded .578x28 RH HK45 & HK45 Tactical threaded barrel compatible with a variety of flash hiders and sound suppressors. Unlike the factory HK45 Tactical barrel, which has a metric 16x1 LH thread, this barrel...HKP-17446$250.00