FIG. 1 is a left side elevational view of the muzzle brake showing the design, the muzzle break being integral with the barrel of a pistol shown in phantom;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a left side elevational view of a second embodiment of the design, the sole difference being the more rounded shape of the front and rear edges of the opening in the top thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof;

FIG. 10 is a front elevational view thereof;

FIG. 11 is a left side elevational view thereof; and,

FIG. 12 is a right side elevational view thereof.

The broken lines are for illustrative purposes only and forms no part of the claimed design.