The ornamental design for a firearmsight, as shown and described.
FIG. 1 is a front isometric view of a firearm sight showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof, the right side elevation view being a mirror image thereof; and,
FIG. 5 is a top plan view thereof.
The dashed broken lines in the Figures show portions of the firearm sight that form no part of the claimed design. The dashed-dotted broken lines in FIGS. 1-3 and 5 represent unclaimed boundaries between claimed and unclaimed portions of the firearm sight. The relatively thin lines in the Figures represent contour and not surface ornamentation. The bottom view is omitted and forms no part of the claimed design.