Spray Gun

FIG. 1 is a top, front and right side perspective view of a spray gun showing my new design; FIG. 2 is a bottom, rear and left side perspective view thereof; FIG. 3 is a front perspective view thereof; FIG. 4 is a rear perspective view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a right side view thereof; FIG. 7 is a top plan view thereof; FIG. 8 is a bottom plan view thereof; and, FIG. 9 is a top, front and right side perspective view showing the spray gun in a state of use. The broken lines in FIGS. 1 - 8 illustrate portions of the spray gun which form no part of the claimed design. The broken lines in FIG. 9 illustrate portions of the spray gun and environmental subject matters that form no part of the claimed design.