The main features of the Tokyo Marui G36C are long mount rail in form of flat top carrying handle, heavy duty metal inner frame, folding stock with rubber butt plate, flip type rear sight, protected front sight, short 4 prong flash hider, under mount rail for lights and grips, 5.56mm(.223) magazines with replica rounds (same ones that were so popular in P90 magazines) and EG1000 motor.

The G36C uses SD-type battery, which is positioned inside the hand guard.
Manufacturer - Tokyo Marui
Battery Type - 8.4V Mini type
Motor - EG1000
Fire Modes - Semi & Full Auto
Muzzle Velocity - 280fps
Rounds per min. - 750
Accurate Range - 60-80ft
Length (barrel) - 718mm (247mm)
Weight - 2850g
Magazine Capacity - 50

taken from Central Airsoft Portal