The advanced version of the M4 has the same specs as the G&G M4 with the following upgrades:
Advanced model upgrades include:
8mm Ball Bearing Bushings
G&G "Strong" Motor
Metal Ball Bearing Spring Guide
Reinforced Piston
Metal Piston Head
Silver Wiring
Silver Electroplated Tight Bore Barrel
Specifications .
Velocity 375 FPS
Hop Up Yes, Adjustable
Barrel Thread 14mm Negative
Blowback No
Gear Box Heavily Reinforced Metal
Motor Type Torque Up, Long Type
Gun Stock Retractable/ Collapsible
Fire Modes Semi & Full Auto
Magazine Capacity 450
Caliber 6mm
Comes with:
Battery, Charger, Cleaning rod, Magazine, Ballistics glasses and a small bag of bbs.
