Suppressor

A silencer, also known as a sound suppressor, suppressor or sound moderator, is a muzzle device that reduces the acoustic intensity of the muzzle report (sound of gunfire) and eliminates muzzle flash when a gun (firearm or air gun) is discharged, by modulating the speed of gas ejection from the muzzle and hence suppressing the muzzle blast. Like the muzzle brake, a silencer can be a detachable accessory mounted separately onto the muzzle, or an integral part of the barrel. A silencer, also known as a sound suppressor, suppressor or sound moderator, is a muzzle device that reduces the acoustic intensity of the muzzle report (sound of gunfire) and eliminates muzzle flash when a gun (firearm or air gun) is discharged, by modulating the speed of gas ejection from the muzzle and hence suppressing the muzzle blast. Like the muzzle brake, a silencer can be a detachable accessory mounted separately onto the muzzle, or an integral part of the barrel. A typical silencer is a metal cylinder with internal sound baffles that slow and cool the escaping propellant gas, dissipating its energy over a longer time and over a larger area, thus reducing the blast intensity and decreasing both the sound volume and recoil generated during shooting. A flash suppressor, on the other hand, specifically cools or disperses burning gases typically already exited the muzzle of a carbine-length weapon to reduce the amount of flash, without reference to sound reduction.