A muzzle brake (i.e., muzzle brake, suppressor, or compensator) directs air through ports in a top of the muzzle brake. Each pair of ports, left and right, has a corresponding baffle to which they are adjacent and form a recess in the rear face of. Each port is between 15 and 30 degrees from top center, and each port angles forward between 15 and 30 degrees. Each port is threaded such that a user may shut the port off with a set screw. Each baffle has a top tooth and a bottom tooth which direct gases from the muzzle of the firearm laterally and into the pair of ports associated with the baffle. The brake may also have lateral vents to disperse the excess gases received from the muzzle.