Dynamic Power Air Brush Spray Gun Dual Action Mirco Air Control Kit 0.2mmDynamic Power Air Brush Spray Gun Dual Action Mirco Air Control Kit 0. 2mm Dual Action Gravity feed airbrush designed for quick changes of custom mixed colours. The trigger controls both air and colour (down for air, back for colour). This allows the artist to change the width of the line, the range of value and the opacity of paint without stopping their hand motion. It is also feature Micro Air Control Valve can control the air flow at the head of