FIG. 1 is a front, right, top perspective view of a rear sight for a gun in accordance with my new design, the rear sight for a gun being shown in a raised configuration;
FIG. 2 is a rear, left, bottom perspective view of the rear sight for a gun of FIG. 1;
FIG. 3 is a front view of the rear sight for a gun of FIG. 1;
FIG. 4 is a right side view of the rear sight for a gun of FIG. 1;
FIG. 5 is a rear view of the rear sight for a gun of FIG. 1;
FIG. 6 is a left side view of the rear sight for a gun of FIG. 1;
FIG. 7 is a top view of the rear sight for a gun of FIG. 1;
FIG. 8 is a bottom view of the rear sight for a gun of FIG. 1;
FIG. 9 is a front, right, top perspective view of a rear sight for a gun in accordance with my new design, the rear sight for a gun being shown in a lowered configuration;
FIG. 10 is a rear, left, bottom perspective view of the rear sight for a gun of FIG. 9;
FIG. 11 is a front view of the rear sight for a gun of FIG. 9;
FIG. 12 is a right side view of the rear sight for a gun of FIG. 9;
FIG. 13 is a rear view of the rear sight for a gun of FIG. 9;
FIG. 14 is a left side view of the rear sight for a gun of FIG. 9;
FIG. 15 is a top view of the rear sight for a gun of FIG. 9; and,
FIG. 16 is a bottom view of the rear sight for a gun of FIG. 9.
All portions shown in broken lines are environmental and illustrative only and form no part of the claimed design.