suppressor

Device which reduces sound intensity or muzzle flash on a firearm

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 and the recoil when a gun is discharged, by modulating the speed and pressure of the propellant gas from the muzzle and hence suppressing the muzzle blast. Like other muzzle devices, a silencer can be a detachable accessory mounted separately onto the muzzle, or an integral part of the barrel.

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