The ornamental design for a handstop for a firearm, as shown and described.
FIG. 1 is a left, front, bottom perspective view of a embodiment of a hand stop for a firearm attached to a firearm hand guard showing our new design;
FIG. 2 is a left, front, bottom perspective view of the hand stop for a firearm of FIG. 1;
FIG. 3 is a front elevation view of the hand stop for a firearm of FIG. 1;
FIG. 4 is a rear elevation view of the hand stop for a firearm of FIG. 1;
FIG. 5 is a left side elevation view of the hand stop for a firearm of FIG. 1;
FIG. 6 is a right side elevation view of the hand stop for a firearm of FIG. 1;
FIG. 7 is a top plan view of the hand stop for a firearm of FIG. 1; and,
FIG. 8 is a bottom plan view of the hand stop for a firearm of FIG. 1.
The broken lines showing portions of the design in all figures are included for the purpose of illustrating environment and unclaimed features and form no part of the claimed design.