The ornamental design for a pad for a gunbuttstock, as shown and described.
FIG. 1 is a front perspective view of a pad for a gun buttstock incorporating my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a left side view thereof;
FIG. 8 is a perspective view thereof installed on a gun buttstock; and,
FIG. 9 is a top plan view thereof installed on a gun buttstock with the charging rod of the gun drawn partially over the pad.
The dashed broken lines in the drawings depict environmental subject matter only and form no part of the claimed design. The dot-dot-dash broken lines in FIGS. 1-9 are boundary lines representing the outer bounds of the claimed portion of the design. The pad is made of a flexible material in order to conform to the shape of a gun buttstock, as shown in FIGS. 8-9.