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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On Sale
HK MP5 Receiver Flat - 9mm - US Made
LSC
Now: $179.96Was: $199.95MP5 Receiver Flat - LSC LSC HK MP5 receiver flat is the most in spec flat that has ever been available. The best option for your HK German parts kit build. This flat is considered by many to be most...HKP-20555Now: $179.96Was: $199.95 -
On Sale
HK MP5K, AP5-P Vertical Foregrip
MKE
Now: $40.46Was: $44.95MKE Made Vertical Foregrip MKE vertical grip for the HK MP5K models. Compatible With: HK MP5K, SP89 HHKP-22471Now: $40.46Was: $44.95 -
HK MP5SD Barrel Port Brush Handle
HKP HK Parts
$39.95HKP SD Barrel Port Brush Handle The HK Parts SD brush handle is the perfect tool to pair with your factory H&K or HK Parts barrel brush.&nHKP-21448-M$39.95 -
HK P7 Series Pistol Grip Screw
H&K Heckler & Koch
$8.95Heckler and Koch Grip Screw for HK P7 Series HK German P7 series factory grip screw for the left or right side grip. The grip screw commonly strips out or can lose its new finish with use. This...HKP-01229$8.95 -
On Sale
HK Mark 23 Optic Plate - Holosun, RMR - Red Dot Pistol Mount
HKP HK Parts
Now: $79.97Was: $99.95HKP HK Mark 23 RMR Optics Plate The finest Red dot mounting solution for your HK MK23. New optic plate that replaces your rear sight to allow a Red dot optic to mount on your Mark 23 slide. A...HKP-21415Now: $79.97Was: $99.95 -
HK VP9 Magazine Locking Plate - 17 Round
H&K Heckler & Koch
$8.95Magazine Locking Plate for 17 Round Magazine - HK VP9, P30 New HK German factory part. This is the locking plate for the bottom of the magazine spring on the newer VP9/P30 17 Round magazine.HKP-19322$8.95 -
HK MP5, MP5K Magazine Follower and Locking Plate Set - 9mm
HKP HK Parts
$12.95HKP MP5 & MP5K 9mm Magazine Follower & Locking Plate Set A drop in item that allows you to swap your follower & locking plate to green or red. Best for a quick empty mag identifier. A great training...HKP-21573-M$12.95 -
On Sale
HK MP5, G3, HK53 Semi Auto Shelf Weldment - Billeted
DTAC Dakota Tactical
Now: $27.97Was: $34.95DTAC Spec Billeted Semi Auto Shelf For C/P'ed Trigger Group -Dakota Tactical The needed receiver shelf that is welded to the magwell of the receiver to allow the use of clipped & pinned trigger...HKP-18072Now: $27.97Was: $34.95 -
HK33, HK53, HK93 Rear Sights Windage Screw
H&K Heckler & Koch
$4.95H&K Rear Sights Windage Screw - HK 90 Series This is a hard-to-find rear sight screw new from HK Germany - not surplus.HKP-00867$4.95 -
HK MP5, MP5K Spare Parts Kit
H&K Heckler & Koch
$259.95H&K HK MP5, MP5K Spare Parts Kit HK MP5, HK SP5, HK94 & MP5K, SP89, SP5K Spare parts kits for the most commonly worn parts needed to keep your precious MP5/MP5K going. This offering also includes a...HKP-20619$259.95 -
Out Of Stock
HK MP5, MP5K Locking Piece - 100 Degree
HKP HK Parts
$33.95HKP MP5, HK94 & MP5K 100 Degree Locking Piece Each 100 degree MP5 locking piece is the proper, correct locking piece for all HK MP5, 94 and full size clones as well as this is now the correct locking...HKP-18049$33.95 -
On Sale
HK P2000 Straight Trigger
Grayguns
Now: $85.50Was: $95.00Grayguns HK P2000 Straight Trigger Designed by Keith Hosey, Grayguns’ director of gunsmithing, the HK P2000 Straight Trigger is a first-of-its-kind in the market. The trigger reduces over-travel...HKP-21071Now: $85.50Was: $95.00