Muzzle brake

FIG. 1 is a perspective view of the first embodiment of a muzzle brake showing the new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right side elevation view thereof; and

FIG. 8 is a left side elevation view thereof.

FIG. 9 is a perspective view of the second embodiment of a muzzle brake showing the new design;

FIG. 10 is another perspective view thereof;

FIG. 11 is a front elevation view thereof;

FIG. 12 is a rear elevation view thereof;

FIG. 13 is a top plan view thereof;

FIG. 14 is a bottom plan view thereof;

FIG. 15 is a right side elevation view thereof; and,

FIG. 16 is a left side elevation view thereof.

The broken lines illustrate features of the muzzle brake that form no part of the claimed design.