Pistol Lock

FIG. 1 is a first perspective view of a pistol lock showing our new design; FIG. 2 is a second perspective view thereof; FIG. 3 is a front view thereof; FIG. 4 is a back view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a right side view thereof; FIG. 7 is a top view thereof; FIG. 8 is a bottom view thereof; and, FIG. 9 is an enlarged view of the selected portion 9 in FIG. 1 . The long dash-short dash broken lines in FIGS. 1 and 9 depict the boundaries of the area of enlargement and form no part of the claimed design.