The basic edition features the Mosfet fire control system instead of the mechanical and classical fire control system.
The BigRRR Mosfet is pre-programmed with its semi function. Can be set as one-shot, two-shot and 3-5 shots burst. It has a 2-second prime function when putting on the mag. This function can be turned off.
Instructions are provided in the instruction booklet upon purchasing the gearbox. No programming card required.