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, PTR Magazine - 20 Round - Alloy - Like New
Rheinmetall
$19.95Rheinmetall HK G3, HK91, and PTR91 20 Round Magazine - Like New Rheinmetall G3 alloy mags were made for the German Army and are no longer in production. Once they are gone, they are gone for good...HKP-22495$19.95 -
On Sale
HK45C, USPC Magazine Extension - +7 - .45 ACP
HKP HK Parts
$38.22 - $59.95HKP +7 .45 ACP Magazine Extension for HK 45C and HK USPC HK Parts magazine extension +7 adds 7 additional rounds to the HK45C, 8 round magazine. Each unit can then be fully assembled into a 15 round...HKP-21807-M$38.22 - $59.95 -
HK MP5, MP5K Optic Mount - Raised - Aimpoint ACRO, T1, T2 - Picatinny
MI Midwest Industries
$104.95Midwest Industries HK MP5, MP5K Tall Optic Mount Tall, clamp-on optic mount for HK MP5 and MP5K pattern firearms, giving a higher, more upright sightline while still allowing use of the factory...HKP-22396-M$104.95 -
HK SL8, G36 Full Size Bottom and Side Rail Set, Complete - Aftermarket
USA
$69.95US made Full Size Aftermarket Complete Bottom and Side Rail Set for HK SL8 and HK G36 Comes with the bottom and 2 side rails, left and right, as well as the screws and Allen wrench. Made of...HKP-00633$69.95 -
HK45, HK45T, P30L International Holster
Comp-Tac
$74.95 - $84.95Comp-Tac HK 45/Tactical/P30L International Holster The International is an outside the waistband holster with a modular mounting design giving the user 16 holster options in 1. Designed to be worn at...HKP-17482-M$74.95 - $84.95 -
HK P2000, P2000SK Night Sight Set - Tru-Dot - Green
Meprolight
$107.95Meprolight HK P2000/P2000SK Tru-Dot Night Sight Set - Green Features: Unequaled Light Performance Brightest Night Sights AvailableHKP-01904$107.95 -
HK45, HK45 Compact, USP, USP Compact New Style Hammer
H&K Heckler & Koch
$62.95H&K HK USP/USPC/45/45C New Style Hammer Will work for USP/USPC variants 1-4, 9 & 10. This part replaces the older HK hammer without the sear cutout (part #214825). Compatible With:HKP-01256$62.95 -
B&T Ambidextrous Sling Pin - Small
B&T Brugger & Thomet
$58.95B&T Ambidextrous Sling Pin - Small Replaces the small push pin to allow a sling attachment point on either the left or right side of the firearm. Each measures: 6x29mm with rubber o-ring and net...HKP-16886$58.95 -
On Sale
HK416 Dual Magazine Clamp - .22 LR
HKP HK Parts
$39.96 - $49.95HKP HK 416 .22LR Dual Magazine Clamp Securely hold two HK 416 .22LR magazines together for fast mag swaps. Precision-machined from billet aluminum. Our dual mag clamp is a must for those quick mag...HKP-21607-M$39.96 - $49.95 -
On Sale
HK VP9SK EDC Tactical Magwell
HKP HK Parts
Now: $38.22Was: $59.95HKP HK VP9SK EDC Tactical Magwell Low profile, every day carry magwell for the HK VP9SK pistol. The low profile mag-well is designed for the average every day VP9SK owner. That would like the...HKP-18164-MNow: $38.22Was: $59.95 -
On Sale
HK VP9, P30L Dynamic Pistol Rest
Now: $89.96Was: $199.95USA 1Shot GS Dynamic Pistol Rest - 1SHOT Systems - HK VP9 and P30 Series Pistols Features: Not permanently attached—your grip alone keeps them connected GripHKP-20525Now: $89.96Was: $199.95 -
HK USP Series Firing Pin Block Spring - Old Style
H&K Heckler & Koch
$9.95HK USP Series Old Style Firing Pin Block Spring In order to use the new firing pin block spring, you also have to upgrade the firing pin, firing pin block, as well as the firing pin block spring. HK...HKP-02149$9.95