An HVLP gravity pressurized spray gun, to be used with a pressurized H/O cup system to provide superior application of high viscosity coatings. Kit contains 1 each HGP spray gun and 4 atomizing heads - 2 each 1.8mm nozzles and 2 each 2.0mm nozzles. The innovative replaceable atomizing head allows for increased productivity, reduction in coating consumption and maximizes the benefits of the 3M(TM) PPS(TM) System.