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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Carbon-Cleaner - 500 ml Aerosol
SchleTek
$32.95SchleTek Carbon Cleaner 500 ml Aerosol Time-saving removal of stubborn fouling. Special formula for heavily used firearms. Frequent and thorough gun cleaning is not only a prerequisite to achieve...HKP-21766$32.95 -
HK21 Drum Hanger and100rd Drum
HKP HK Parts
$435.95HKP HK21 Drum Hanger with H&K 100 Round Drum Complete your HK21 or FMP21 build with our HKP drum hanger and H&K original 100-round drum. Our HK21 drum hanger is precisley machined from 4140 billet...HKP-21633$435.95 -
On Sale
B&T MP9, TP9 Case
B&T Brugger & Thomet
Now: $179.96Was: $199.95B&T Carrying Case and MP9 and TP9 B&T factory issue MP9 and TP9 carrying cases. These cases are no longer in production or available from any other vendors. A limited quantity is available. Get...HKP-21084Now: $179.96Was: $199.95 -
HK MP5K, SP89 Trigger Housing - SEF Navy - Clipped and Pinned - LIKE NEW
H&K Heckler & Koch
$149.95H&K MP5K & SP89 9mm SEF Navy Style Housing - Clipped & Pinned - LIKE NEW Each housing is clipped and pinned and fitted for the semi auto shelf of the HK MP5K builds or SP89 firearms. SpecificHKP-20617$149.95 -
On Sale
HK UMP, USC Hammer Spring - Right - US
USA
Now: $6.97Was: $9.95HK UMP & USC Right Side Hammer Spring For Lowers - USAHKP-19557Now: $6.97Was: $9.95 -
On Sale
HK USC, UMP Cocking Handle Assembly - Complete
HKP HK Parts
Now: $95.59Was: $149.95HKP Cocking Handle Assembly for HK USC, UMP Complete cocking handle assembly for HK USC and HK UMP platforms. US-made and built to factory-spec dimensions and includes all required components for...HKP-19155Now: $95.59Was: $149.95 -
On Sale
HK P30 Tactical Barrel - 9mm - 4.45" - Threaded 13.5x1 LH
RCM
Now: $202.50Was: $225.00RCM HK P30 9mm Tactical Barrel - Threaded 13.5x1 LH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest...HKP-16238Now: $202.50Was: $225.00 -
On Sale
HK UMP Magazine Locking Plate - .45 ACP - US
USA
Now: $6.26Was: $6.95HK UMP .45 Magazine Locking Plate Made in the USAHKP-20136Now: $6.26Was: $6.95 -
On Sale
HK MP5, GSG Magazine Pouch - Single - .22 LR
Comp-Tac
Now: $31.47Was: $44.95Comp-Tac HK MP5 .22/GSG .22LR Single Magazine Pouch The single magazine pouch PLM is an all Kydex magazine pouch which gives a smooth friction free surface perfect for a quick reload for your MP5 .22...HKP-20100Now: $31.47Was: $44.95 -
HK German Ambidextrous Sling Pin Replacement O-Ring
H&K Heckler & Koch
$5.95H&K German Ambidextrous Sling Pin Replacement O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. Brand new factory German manufacture. This item is a common...HKP-19985$5.95 -
Out Of Stock
HK45 Recoil Rod Absorber Bushing
H&K Heckler & Koch
$9.95HK 45 Recoil Rod Absorber Bushing This part is a common wear and replacement part and a must-have for spare parts. Compatible With:HKP-02269$9.95 -
HK Mark 23 Barrel - .45 ACP - Threaded 16x1 RH
H&K Heckler & Koch
$589.95H&K Mark 23 .45 ACP Barrel - Threaded 16x1 RH A great replacement item for a now out-of-production pistol. New HK German mark 23 barrel threaded with the factory correct 16x1 RH thread. Get that...HKP-01038$589.95