The end of a gun barrel from which the bullet or shot emerges.
The resultant noise that occurs at the muzzle of a firearm when the projectile leaves the muzzle and hot gases are released.
A muzzle attachment or feature that uses the propellant combustion gas with the desired effect of redirecting the recoil.
A visual phenomenon that appears to displace a target from its true position through a shimmering effect. It is caused by heated air that deflects light rays.
A cover put on the muzzle end of a barrel to keep out foreign matter.
Any malfunction during the feed cycle of a repeating firearm resulting in the failure of a cartridge or shell to enter the chamber completely. Also known as Failure to Feed.
A projectile’s energy at the time it leaves the muzzle of a gun.
A failure of the priming mixture to be initiated after the primer has been struck an adequate blow by a firing-pin or the failure of the initiated primer to ignite the powder.
The illumination which is the result of the expanding gases from the burning propellant particles emerging from the barrel behind the projectile and uniting with oxygen in the air.
The solid section at the breech end of some multi-barrel guns into which the barrels are inserted.