We claim the ornamental design for a locknut for suppressor of small and light firearms, as shown and described.
FIG. 1 is a perspective view of a locknut for suppressor of small and light firearms showing the new design;
FIG. 2 is a top plan view of the locknut for suppressor of small and light firearms thereof;
FIG. 3 is a bottom plan view of the locknut for suppressor of small and light firearms thereof;
FIG. 4 is a front elevation view of the locknut for suppressor of small and light firearms thereof;
FIG. 5 is a rear elevation view of the locknut for suppressor of small and light firearms thereof;
FIG. 6 is a right side elevation view of the locknut for suppressor of small and light firearms thereof; and,
FIG. 7 is a left side elevation view of the locknut for suppressor of small and light firearms thereof.
The broken lines in the figures represent unclaimed portions of the locknut for suppressor of small and light firearms and form no part of the claimed design.