FIG. 1 is a front left perspective view of a spray gun; FIG. 2 is a left side view of the spray gun; FIG. 3 is a right side view of the spray gun; FIG. 4 is a front view of the spray gun; FIG. 5 is a rear view of the spray gun; FIG. 6 is a top view of the spray gun; and, FIG. 7 is a bottom view of the spray gun.