Marui Colt M4 A1 R.I.S 
SP62MAE

The Colt M4 A1 R.I.S is semi and full automatic with an extendable stock. Other features are: 68BB magazine capacity, EG1000 motor, forend handle, External battery case, requires 8.4v battery (code: SP95MA) which also requires a charger (code: RRSAT16). features the Hop-Up system