M4 CQB is the variant of the M4A1 Carbine which has a 10.5 inch barrel, allowing user to better operate in extreme close combat environment. It mainly used by US Special Force and US police, SWAT for its easy carry and short length.

It also has a variant known as Mk18 used by US SEALS team.

Features:
14mm”-” Metal Flash Hider.
Metal RIS Hand Guard.
RIS Fore Grip and 2 pcs of Rail Cover is included.
Metal Body Frame with  “MARINE ENV.M-4”marking.
Standard 20mm rail on the upper frame for rail attachments.
Bolt catch function available for easy Hopup adjustment.
Removable Rear Sight.
Expandable Battery Stock which Store up to 9.6V twin type batteries.
Ready to go for 390FPS without modification.
Included cleaning rod and sight adjustment tool.
Included 300 rounds Hi-cap Magazine.

** Please note that Battery and Charger are not included**

Specifications:
Length: 705mm, 785mm (Stock extended)
Barrel Length: 285mm
Shooting Mode: Safety, Semi-Auto & Full-Auto
Weight (g):  3678 (with box)
Color: Black
Magazine Capacity: 300 rds
Material: Metal & Nylon Fiber
Bullet type: 6mm BB
Power (Muzzle Velocity): 390FPS
Manufacturer: EC