TECHNICAL SPECIFICATION:

Type : AEG

Hop Up type: Adjustable hop-up system

Capacity: 300 bbs

Weight: 3050 grams
Length: 768/834 mm

Battery: Nunchuk type

Muzzle Velocity: 300FPS

Energy: 1 Joule

Fire rate: 12bbs/second

Adjustable front & rear sights

Adjustable BAX shooting system

Anodized Aluminum Up & Lower Receiver

Metal Hop Up Chamber

Ultra High Torque SRC Motor

Heavy Duty Aluminum

Steel Parts (Magazine Catch, Bolt Catch, Charging Handle, Front Sight)

Integrated Rail System

Fixed stock type

Inner barrel Diameter: 6.05mm

Inner Barrel Length: 200mm

Brandname: SRC

NiMH battery and charger not included

PRODUCT HISTORY:

The M4 carbine is a family of firearms tracing its lineage back to earlier carbine versions of the M16, all based on the original AR-15 made by ArmaLite. It is a shorter and lighter version of the M16A2 assault rifle, with 80% parts commonality. The M4 hasselective fire options including semi-automatic and three-round burst (like the M16A2), while the M4A1 has a "full auto" option in place of the three-round burst.

 Except for the very first delivery order, all U.S. military-issue M4 and M4A1 possess a flat-top NATO M1913-specification (Picatinny) rail on top of the receiver for attachment of optical sights and other aiming devices — Trijicon TA01 and TA31 Advanced Combat Optical Gunsights (ACOG), EOTech 550 series holographic sights, and Aimpoint M68 Close Combat Optic (M68 CCO) being the favorite choices — and a detachable rail-mounted carrying handle. Standards are the Colt Model 920 (M4) and 921 (M4A1).

 Variants of the carbine built by different manufacturers are also in service with many other foreign Special Forces units, such as the Australian Special Air Service Regiment (SASR). While the SASR uses weapons of essentially the same pattern built by Colt for export (Colt uses different models to separate weapons for the U.S. military and those for commercial/export purposes), the British SAS uses a variant on the basic theme, the Colt Canada (formerly Diemaco) C8SFW.