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 Extractor - MKE
MKE
$9.95MKE HK91, G3, PTR Extractor Turkish .308 extractor for HK G3, HK91, PTR, and other G3-pattern rifles. Genuine MKE replacement extractor manufactured from steel for replacing worn, damaged, or...HKP-22883$9.95 -
HK91, G3 Sling Button
H&K Heckler & Koch
$9.95Heckler and Koch Sling Button Stud for HK91 and G3HKP-99475$9.95 -
On Sale
HK MP5 Trigger Group - AR Match - FDE - BLEMISHED
Magpul
Now: $389.96Was: $664.95Magpul AR Match Trigger Group for HK MP5 - FDE Our new and improved HK-AR Navy ambidextrous lower housing is now paired with our match trigger pack and a Magpul MOE grip to make this complete MP5-AR...HKP-99473Now: $389.96Was: $664.95 -
HK91, G3 Cocking Handle - Black - Rubberized - Surplus -Used
H&K Heckler & Koch
$24.95HK German HK G3 & HK 91 Rubberized Cocking Handle- Used Used German military surplus from G3 Military rifles. Each comes complete, black in color. Date coded. Made by HK for the German military. CoHKP-22849$24.95 -
HK VP9CC Striker Assembly - Complete
H&K Heckler & Koch
$85.95HK VP9CC Striker Complete Assembly Factory HK complete striker assembly for the HK VP9CC pistol. Compatible With: VP9CCHKP-22734$85.95 -
Out Of Stock
HK MP5, SP5, MP5K, SP5K Flash Hider - 3-Lug - 9mm
HKP HK Parts
$99.95Heckler and Koch MP5 SP5 MP5K SP5K Flash Hider 3-Lug 9mm Flash hider designed for Heckler and Koch MP5, SP5, MP5K, and SP5K platforms in 9mm caliber. Used to reduce muzzle flash signature during...HKP-22788$99.95 -
On Sale
HK VP9 Sight and Optic Mount Set - Green Fiber Optic - RMR
XS Sight Systems
Now: $119.66Was: $132.95XS Sights Green Fiber Optic Suppressor-Height Sight and RMR Footprint Optic Mount Set for HK VP9 Optics Ready Pistols The XS Sights Green Fiber Optic Sight and Optic Mount Set provides a complete...HKP-22681Now: $119.66Was: $132.95 -
HK VP9 Optic Mount - ACRO
XS Sights
$72.95XS Sights ACRO Optics Plate for HK VP9 Optics Ready Pistols XS Sights ACRO optics plate for HK VP9 optics-ready pistols. Machined from steel and finished in black nitride, this plate is built to...HKP-22675$72.95 -
On Sale
HK21E, HK11A1, HK11E Barrel With Grip - 17.7"
Michaels Machines
Now: $1,331.06Was: $1,478.95MM HK21E, HK11A1, HK11E Barrel - 17.7" Michael's Machines HK21E barrels are crafted in the US from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance. Barrels come complete, drop-in...HKP-22540Now: $1,331.06Was: $1,478.95 -
On Sale
HK G36, UMP Handguard Handstop - BLEMISHED
OMEGA
Now: $16.46Was: $29.95HK G36, UMP Handguard Handstop - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK G36 hand stop...HKP-22512-BNow: $16.46Was: $29.95 -
On Sale
HK91, G3 A2 Stock - Tan - Saudi Contract - Enhanced Heavy Buffer - Like New - Rare
Other
Now: $247.46Was: $274.95Rare Saudi Arabian Contract HK91, G3 A2 Stock with HKP Enhanced Heavy Buffer - Tan - Like New VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Original Saudi Arabian contract G3 A2 fixed stock in tanHKP-99420Now: $247.46Was: $274.95 -
On Sale
HK UMP40 Bolt Group - Semi-Auto - 40 S&W - USED
H&K Heckler & Koch
Now: $547.46Was: $949.95Heckler and Koch HK UMP40 Bolt Group - Semi-Auto - 40 S&W - USED ONLY 3 UNITS AVAILABLE - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Complete factory HK bolt group for semi-automatic UMP firearms...HKP-99388Now: $547.46Was: $949.95