The ornamental design for a firearm, as shown and described.
The file of this patent contains at least one drawing executed in color. Copies of this patent with color drawings will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a front view of a firearm showing our new design; and,
FIG. 2 is an enlarged view of the claimed area shown in FIG. 1 thereof.
The unclaimed broken lines immediately adjacent to the shaded area represent the boundaries of the design. The broken lines showing the remainder of the firearm are for environmental purposes only and form no part of the claimed design. The wavy broken line in FIG. 2 that does not appear in FIG. 1 is an imaginary break line that forms no part of the claimed design.