Abstract: The present invention is of a muzzle device that is either permanently fixed or releasably attached to the end of the barrel of a firearm. The muzzle device may have a configuration that reduces the loss of pressure and flow rate of the propellant gas by employing a central bore having approximately the same diameter as the bore of the barrel. The muzzle device may further have apertures with inserted adjustable screws with hollow interior portions for tuning the degree of propellant gases in various directions away from the muzzle device. The external diameter of the muzzle device may also have substantially the same diameter as the external diameter of the barrel to allow for access to firearm components without having to remove the muzzle device from the end of the barrel.

Abstract: The present invention is of a muzzle device that is either permanently fixed or releasably attached to the end of the barrel of a firearm. The muzzle device may have a configuration that reduces the loss of pressure and flow rate of the propellant gas by employing a central bore having approximately the same diameter as the bore of the barrel. The muzzle device may further have apertures with inserted adjustable screws with hollow interior portions for tuning the degree of propellant gases in various directions away from the muzzle device. The external diameter of the muzzle device may also have substantially the same diameter as the external diameter of the barrel to allow for access to firearm components without having to remove the muzzle device from the end of the barrel.