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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Out Of Stock
HK VP Series F3 Trigger - Full Flat Face - 9mm, .40 S&W
Lazy Wolf
$129.95Lazy Wolf's F3 Full Flat Face Trigger for the extensive HK VP Series - Black In a collaboration with Lazy Wolf Guns, HK Parts is offering aftermarket triggers for your HK VP9 and VP40 handguns. The drop in VP9 series trigger is the best trigger ever...HKP-17988$129.95 -
Out Of Stock
HK MP5, SP5, MP5K, SP5K Magazine - 10 Round - 9mm - California Compliant
H&K Heckler & Koch
$88.95California Complaint Magazine 10-30 - MP5, MP5K - German - New This California compliant magazine has a 10 round block pre-installed which converts a factory 30 round magazine into a 10 round magazine. This is the best option to stay legal in...HKP-20670$88.95 -
HK USP, Mark 23 Magazine, Complete - .45 ACP - 17 Round
HKP HK Parts / Heckler & Koch
$119.95HK Parts and Heckler and Koch complete .45 ACP 17-round Magazine for HK Mark 23 and HK USP Each mag comes fully assembled and ready for use. HK Parts takes an existing German HK 12 round magazine coupled with the +5 magazine extension and...HKP-19465-M$119.95 -
HK MP5, HK90 Series Ejector Axle Spring Ring - SEF, Ambi
USA
$1.95Ejector Lever Axle Retaining Spring This is the perfect spring ring to replace your worn out ejector lever axle spring ring. Made to HK spec for the best US replacement part on the market. Replacement of the retaining spring clip is necessary to keep...HKP-20629$1.95 -
HK Sling Pin - Large - Quick Detach Attachment
HKP HK Parts
$37.95HKP Quick Detach Sling Attachment Sling Pin - Large The large stock push pin is used to retain the stock to the receiver on the 90 series of firearms. The QD sling pin is a great replacement item as it will allow the user to simply swap the push pin for...HKP-18070$37.95 -
HK MP5, SP5, HK94 Handguard - 9mm - Lightweight
B&T Brugger & Thomet
$259.95B&T Brugger & Thomet HK MP5, SP5, HK94 Handguard - 9mm - Lightweight - Tri-Rail B&T's Lightweight Tri-Rail Handguard is almost 25% lighter with practically identical construction. The handguard offers a total of three NAR/Picatinny rails. One...HKP-19737$259.95 -
HK VP9, P30 Magazine Floorplate - 9mm, .40 S&W - 10 Round
H&K Heckler & Koch
$8.95Heckler and Koch Rubberized Floor Plate for HK VP9, VP9SK, VP40, P30, P30L, and P30SK HK German rubberized factory floor plate. Compatible With: VP9 VP40 P30, P30L, P30S P30SK 10 round mags VP9SK 10 round mags Please Note: This will not work or...HKP-01616$8.95 -
HK USP Magazine - Full Size - .40 S&W - 13 Round
H&K Heckler & Koch
$58.95HK German USP 40 Full-Size Magazine Compatible With: USP .40 Full Size USP .40 Tactical USP .40 Elite/Expert Please Note: The Magazine does not fit USP Compact or P2000 modelsHKP-00309-M$58.95 -
HK45, USP LEM Conversion Kit - Complete
H&K Heckler & Koch
$138.95H&K Heckler & Koch HK45, USP, USPC Kit - LEM - Complete - Universal HK German "universal" LEM conversion kit for USP, USPC & HK45, and HK45C pistols. This kit converts your V1-V10 HK Pistol to the LEM configuration. Each LEM kit includes all...HKP-00316$138.95 -
HK MP5K Trigger Housing - SEF Navy Style - Push Pin - 9mm - USED
H&K Heckler & Koch
$74.95H&K MP5K 9mm SEF Navy Style Trigger Housing - Push Pin - USED HK German factory date coded SEF grip frame that has been cut to MP5K factory German specs. This style of housing is for push pin firearms that do not require a clipped and pinned housing...HKP-19997-USED$74.95 -
On Sale
HK MP5 Magazine Clamp - .22LR
GSG German Sports Guns
Now: $11.21Was: $29.95GSG German Sports Guns Magazine Clamp for HK MP5 .22LR Each HK-style mag clamp is made of steel and is the highest quality aftermarket magazine clamp ever made. Holds two magazines together for tactical use and faster mag changes. Available...HKP-00791Now: $11.21Was: $29.95 -
Out Of Stock
HK MP5, HK90 Series Forearm Sling Pin - Quick Detach Attachment
HKP HK Parts
$37.95HKP Quick Detach Sling Attachment Sling Pin - Small The small push pin is used to retain the forearm to the receiver on the HK90 series of firearms. The QD sling pin is a great replacement item as it will allow the user to simply swap the push pin for...HKP-18071$37.95