G&D Metal MAX3 Super Smart (ECU) M4 RIS II Rifle DTW (9557)
- Come with build in ECU board, can programming full auto or 2 to 30 burst - Include: 120 rds Magazine / Outer barrel / Foregrip - Similar to PTW design
Programming burst procedure: Hold the blow release and trigger until there have double signal sound. Than press the trigger between 2 to 30 times. e.g.: set 5 burst, after the double singal sound, press trigger 1, 2, 3, 4, 5, than press and HOLD" After "HOLD", there will have singel signal sound, that means programming finished.
