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 G36 Bolt Group Carrier - Incomplete
H&K Heckler & Koch
$495.99HK G36 Bolthead Carrier Incomplete This is not compatible with a HK SL8.HKP-16434$495.99 -
HK VP9SK Holster - MTAC
Comp-Tac
$79.95Comp-Tac HK VP9SK MTAC Holster The MTAC is an inside the waistband (IWB) Kydex and leather hybrid holster designed for concealed carry. Created to be worn behind the hip at 4:00 or 5:00, this holster offers the best in comfort and speed for...HKP-18342-M$79.95 -
On Sale
HK VP40 Holster - MTAC
Comp-Tac
Now: $47.95Was: $94.95Comp-Tac HK VP40 MTAC Holster The MTAC is an inside the waistband Kydex and leather hybrid holster designed for concealed carry. Created to be worn behind the hip at 4:00 or 5:00, this holster offers the best in comfort and speed for concealed carry use...HKP-17466-MNow: $47.95Was: $94.95 -
On Sale
HK G36, G36C, G36K Picatinny Rail - Single Sided
Other
Now: $47.95Was: $69.95Single Sided Picatinny Rail - HK G36, G36C, G36K - HKP Single-sided lateral Picatinny rail designed for HK G36 sight rail configurations. Provides a mounting interface for compatible accessories on G36 pattern platforms...HKP-18429Now: $47.95Was: $69.95 -
HK MP5 2-Stage Trigger - 10mm / .40 S&W
Timney Triggers
$358.95Timney Trigger for MP5 .40/10 The Timney HK MP5 .40 trigger is factory-set with a two pound first stage and a two pound second stage that elevates the platform so the shooter can achieve the utmost in accuracy. This offering comes complete with a Factory...HKP-20510$358.95 -
HK MP5 Pistol Stabilizing Brace - SBA4 - FDE
SB Tactical
$294.95SB Tactical HK MP5 SBA4 Pistol Stabilizing Brace - FDE MP5, SBA4 5-position adjustable brace features an integral ambidextrous QD sling socket for a quick install and removal sling attachment. This brace is the perfect addition for your MP5, SP5 or clone...HKP-20352$294.95 -
HK MP5K 40/10 SEF Navy Style Housing - Clipped & Pinned
H&K Heckler & Koch
$179.95H&K MP5K 40/10 SEF Navy Style Housing - Clipped & Pinned New factory German housing that has the cutout for the bolt hold open found on the MP5 40/10 firearms. Specifications: Made In Germany Clipped & Pinned SEF Pictogram Markings Navy...HKP-20108$179.95 -
HK MP5K 9mm Semi Auto SF style Trigger Group Complete
USA
$449.95H&K MP5K 9mm Semi Auto SF style Trigger Group Complete Each unit is composed of German HK & the finest US made HK Parts. This lower is ready to drop on your semi auto HK firearm. Comes complete with the US made parts already installed, 3rd gen...HKP-19936$449.95 -
HK MP5 .40 S&W RS Reverse Stretch Parts Kit
HKP HK Parts / Heckler & Koch
$1,689.95MP5 .40 Reverse Stretch Pistol Build Kit Complete German & USA Made Parts MP5 .40 Reverse Stretch parts kit complete with all the parts needed for an MP5.40 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be...HKP-19819$1,689.95 -
On Sale
HK MP5 Build Kit - 9mm - Single Shot Reverse Stretch
H&K Heckler & Koch
Now: $1,399.95Was: $1,519.95California Spec Single Shot Reverse Stretch Kit - German & USA Made Parts: This kit was built with the CA market in mind. This kit has a specially designed locking piece that once installs it renders the kit a single shot style roller lock. This kit...HKP-19698Now: $1,399.95Was: $1,519.95 -
HK Pistol Trigger Return Spring Pliers
H&K Heckler & Koch
$297.95HK Pistols Trigger Return Spring & Mounting Plier The factory HK German factory tool used for various applications as well as trigger return spring removal and install. This is the factory HK German part as used in the HK armorer classes. ***Please...HKP-19678$297.95 -
HK VP9 Holster - Infidel Ultra - LH
Comp-Tac
$94.95HK VP9 Infidel Ultra Holster - Left Hand The Infidel Ultra Holster is an Inside the Waistband Kydex and leather hybrid holster designed for concealed carry. Created to be worn behind the hip at 4:00 or 5:00, this holster is a perfect easy on easy off...HKP-17489$94.95