A flash suppressor, also known as a flash guard, flash eliminator, flash hider, or flash cone, is a device attached to the muzzle of a rifle or other gun that reduces its visible signature while firing by rapidly cooling the burning gases that exit the muzzle, a phenomena typical of carbine length weapons. Its primary intent is to reduce the chances that the shooter will be blinded in low light conditions. Contrary to popular belief, it is only a secondary benefit that the flash suppressor reduces the intensity of the flash visible to the enemy.[1]When barrel lengths were dramatically decreased with the introduction of various short-barrel rifles and carbines, this flash became a serious problem during night-time combat, as the blinding flash would make it impossible for the shooter's eye to adjust to the darkness. Originally limited to "special purpose" roles, it was now expected that all infantry weapons would have short barrels with this problem, and thereby be of limited use in night combat. Flash suppressors became common on late-World War II and later assault rifle designs, and are almost universal on these weapons today.