Abstract: The Invention is a spray gun device to apply a coating product: such as paint, stucco, and drywall mud, to any surface using positive air pressure through a material supply line connected to a sealed container holding the coating product, which has a removable pressure lid. The Invention has an air pressure system to provide pressurized compressed air to propel the coating product through the a material supply line to the spray gun, by producing pressurized compressed air through the compressor air hose from the air pressure source, into the interior compartment of the sealed container and to the spray gun. Clamps attaching to the outer side of the removable pressure lid and pressure regulators secure the removable pressure lid to the sealed container and allow for safe and effective use; and a chassis allows for transporting the entire device.