The ornamental design for a holstermuzzle, as shown and described.
FIG. 1 is a perspective view of the holster muzzle of the present invention;
FIG. 2 is a front view of the holster muzzle of the present invention;
FIG. 3 is a rear view of the holster muzzle of the present invention;
FIG. 4 is a left side view of the holster muzzle of the present invention;
FIG. 5 is a right side view of the holster muzzle of the present invention;
FIG. 6 is a top view of the holster muzzle of the present invention;
FIG. 7 is a bottom view of the holster muzzle of the present invention; and,
FIG. 8 is a perspective view of the holster muzzle shown attached to a firearm holster retaining a firearm of the present invention.
The broken lines in the drawings are used to illustrate unclaimed portions of the holster muzzle as well as an unclaimed holster and firearm in FIG. 8. The broken lines and structure they depict form no part of the claimed design.