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 P30, P2000 Bushing - DAO
H&K Heckler & Koch
$9.95H&K HK P30/P2000 Bushing DAO New HK German bushing for the DAO (Dual Action Only) variant.HKP-17425$9.95 -
HK P2000 Backstrap with Safety - X-Large - Black
H&K Heckler & Koch
$34.95H&K P2000 Backstrap w/ Safety - X-Large - Black Perfect for those that have large hands. Compatible With: HK P2000HKP-01568$34.95 -
HK USP Magazine Locking Plate - 9mm - 10 Round
H&K Heckler & Koch
$5.95Heckler and Koch Magazine Locking Plate For USP 9mm Full Size Magazines Replacement magazine locking plate designed for USP 9mm full size magazines. Intended for maintenance or repair of compatible 10-round magazine assemblies. Compatible With: USP9 10...HKP-01597$5.95 -
On Sale
HK USPC Barrel - 9mm - 3.58" - Non-Threaded
RCM
Now: $169.95Was: $199.95RCM HK USPC 9mm Barrel - Non-Threaded Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. Each USP Compact 9mm barrel is a drop-in fit for your HK USPC pistol. Specifications: Made in...HKP-16704Now: $169.95Was: $199.95 -
Out Of Stock
HK416, MR556 Rear Sight Drum for 10" Barrels
HKP HK Parts
$29.95HKP HK MR556/416 Rear Sight Drum 10" Barrel Length Made in the USA.HKP-17774$29.95 -
On Sale
HK416, MR556 Handguard - 9" - HKey
H&K Heckler & Koch
Now: $289.95Was: $399.95H&K HK MR556/416 9" Modular Rail System - Black HK German MR556 & CR556 handguard that accepts the HKey style modular rail sections. This handguard is compatible with the OSS suppressor system. HK has discontinued this handguard. Only have a few...HKP-17341Now: $289.95Was: $399.95 -
HK G36 Piston Rod Plate
H&K Heckler & Koch
$7.95Heckler and Koch Piston Rod Plate for HK G36 Constructed from steel with a black finish, this factory original part from HK is manufactured in Germany and designed for HK G36 rifle models chambered in 5.56 / .223. The plate is part of the piston rod...HKP-01871$7.95 -
HK G36 Picatinny Evaluation Adapter
H&K Heckler & Koch
$59.95HK G36 Picatinny Evaluation Adapter Picatinny Evaluation Adapter for Carry Handle and Sight Rail. Includes all mounting hardware. Compatible With: G36 G36K G36C ModelsHKP-18779$59.95 -
Out Of Stock
HK UMP, USC Extractor - 9mm
USA
$39.95New US-Made USC & UMP 9mm Extractor: This is the perfect spare part for your UMP or USC 9mm conversion. Please Note: HK considers this a high wear and replacement item. Once it's removed from the carrier, the spring tension...HKP-02625$39.95 -
HK UMP, G36 Lower Slide - Burst 0,1,2 - 9mm. .40 S&W, .45 ACP, 5.56 / .223
H&K Heckler & Koch
$14.95HK G36 & UMP Slide For 3 Position Burst Only Lowers - 0,1,2 Only Compatible With: HK UMP HK G36HKP-01887$14.95 -
Out Of Stock
HK21E, HK23E 4 Position Trigger Housing
H&K Heckler & Koch
$0.00H&K 21E/23E (7.62x51/.308 & 5.56/.223) 4 Position Trigger Housing This 4 position trigger housing is designed for factory HK21E and HK23E firearms. It is an excellent spare to have on hand for your HK belt-fed firearm, providing reliable...HKP-00248$0.00 -
On Sale
HK21, HK23, HK11 Tripod Adapter Weldment
HKP HK Parts
Now: $22.95Was: $25.95HK21, HK23, HK11 Tripod Adapter Weldment Raw steel tripod adapter, ready to weld to the bottom of an HK21 shroud. This factory spec adapter is compatible with factory HK tripods. Compatible With: HK21 (German and FMP...HKP-00232Now: $22.95Was: $25.95