The ornamental design for set of firearm sights, as shown and described.
FIG. 1 is an isometric illustration of the front sight thereof of my new ornamental design for set of firearm sights showing side, top and front views thereof;
FIG. 2 is a front elevation view of the front sight thereof;
FIG. 3 is a rear elevation view of the front sight thereof;
FIG. 4 is a bottom view of the front sight thereof;
FIG. 5 is a side elevation view showing the left side of the front sight thereof;
FIG. 6 is a side elevation view showing the right side of the front sight thereof;
FIG. 7 is a front elevation view showing the rear sight thereof;
FIG. 8 is a side elevation view showing the right side of the rear sight thereof;
FIG. 9 is a side elevation view showing the left side of the rear sight thereof;
FIG. 10 is a rear elevation view showing the rear sight thereof;
FIG. 11 is a bottom view of the rear sight thereof; and,