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
Century Arms AP5 Flash Hider
MKE
Now: $69.95Was: $79.95MKE AP5 Flash Hider - 3-Lug This 3-lug flash hider is perfect for Century Arms AP5. Specifications: Made in Turkey by MKE Tri-lug quick disconnect mounting Compatible With: Century/MKE AP5 & AP5-P MAC5 & MAC 5K NOT compatible with...Now: $69.95Was: $79.95 -
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm
H&K Heckler & Koch
$85.95 - $89.95Heckler and Koch MP5, SP5, SP5K, MP5K 9mm 30 Round Curved Magazine Factory fresh Heckler & Koch 30 round, curved 9mm. When only the best will do. Each magazine starts life as a brand-new, factory-sealed magazine, which is then expertly Cerakoted in...$85.95 - $89.95 -
HK33, HK53, HK93 Magazine - 40 Round 5.56x45mm / .223 / 300
H&K Heckler & Koch
$119.95HK93, HK33, HK53 - 40 Round Magazine - Genuine German HK - Professionally Refinished HK Factory German 40 round surplus magazine that has been professionally disassembled, inspected, bead blasted, cerakoted and cured to look as close to new as possible...$119.95 -
HK416, MR556, HK417, MR762 Pistol Grip with Storage - RAL8000
H&K Heckler & Koch
$89.95H&K 416/417 & MR556/762 Battle Grip With Storage Compartment - RAL 8000 New HK German factory battle grip with storage compartment access located in the bottom of the grip. Superior fit & feel to any other grip on the market. This is a great...$89.95 -
Subgun Magazine Assist - 9mm - 3 Pack
Magpul
$9.95ORIGINAL MAGPUL® 9MM SUBGUN - 3 PACK When installed on the base of a submachine-gun magazine, the original Magpul provides improved speed and control during high stress, tactical magazine changes. Durable synthetic rubber loop with recessed rough...$9.95 -
HK UMP, USC 9mm / .40 S&W / .45 ACP Enhanced Top Receiver Rail
HKP HK Parts
$49.95HK USC & UMP Top Receiver Rail With Hardware - US Made The extended length allows the use of all optics that fit on a Picatinny rail. This unit has a contoured, no-snag design for ease of use and a beautiful fit. Made from billet machined aluminum...$49.95 -
HK VP9, VP9SK, VP40 Clamping Sleeve Insert, Ejector Housing
H&K Heckler & Koch
$1.95Clamping Sleeve For Insert, Ejector Block Housing For HK VP9, VP40 This is the factory correct roll pin for holding the ejector block housing in the frame. New HK German manufacture. Compatible With: HK VP9 HK VP9SK HK VP40$1.95 -
Out Of Stock
HK MP5, HK33, HK53, HK93, HK91, G3 Locking Roller for Bolt Head - 8.04mm
H&K Heckler & Koch
$29.95H&K +4 Roller For Bolt Head 8.04mm - Over-Sized New HK German not surplus or used goods. The correct roller is essential for proper head spacing and the bolt gap. Compatible With: HKG3, 91 & PTR HK93, 33, 53 HK MP5, MP5K Cetme, C308 Clones...$29.95 -
HK Semi Elbow Spring For Trigger Pack - Match Grade
HKP HK Parts
$3.74Match Grade Semi Auto Spacer Elbow Spring - USA Manufactured using the best isolated oil tempered, select spring steel available for match grade performance and the utmost longevity. For use on all HK semi auto trigger packs. A must have for those...$3.74 -
HKP HK MP5 & HK MP5K Dual 9mm Magazine Clamp Bundle - KCI
HKP HK Parts / KCI
$119.95Dual Magazine Clamp Bundle - 9mm - KCI MP5 The MP5, MP5K magazine grip or dual magazine clamp. Fits all 9mm MP5 or MP5K curved magazines. Holds two magazines together for ease of use and easy access to 2 magazines. Half the weight of the factory...$119.95 -
HK 91 (7.62x51/.308) Flash Hider - Threaded 5/8x24 RH
HKP HK Parts
$27.95HK 91 (7.62x51/.308) Flash Hider - Threaded 5/8x24 RH Made in the USA to the exact specifications of the original HK flash hider, following strict HK standards. This flash hider offers the best quality and price in the country, making it the finest...$27.95 -
HK MP5, MP5K Magazine Follower and Locking Plate Set - 9mm
HKP HK Parts
$12.95HKP MP5 & MP5K 9mm Magazine Follower & Locking Plate Set A drop in item that allows you to swap your follower & locking plate to green or red. Best for a quick empty mag identifier. A great training or range aid at a great price. Made...$12.95