Pistol

FIG. 1 is a back right perspective view of a pistol showing our new design; FIG. 2 is a right side view thereof; FIG. 3 is a left side view thereof; FIG. 4 is a top view thereof; FIG. 5 is a bottom view thereof; FIG. 6 is a back view thereof; and, FIG. 7 is a front view thereof. The evenly spaced broken lines illustrate portions and environmental structure of a pistol that form no part of the claimed design. The dot-dot-dash broken lines depict symbolic breaks. The symbolic breaks and the area between the symbolic breaks form no part of the claimed design.