Patent ID: 8171840

Claim:
A firearm suppressor, comprising: a hollow outer can defining an interior with a cross-sectional shape and an interior longitudinal length, the outer can having: an interior-threaded proximal end; and a radially closed distal end defining a longitudinal can bore opening the interior of the can to the environment, the longitudinal can bore having a diameter sufficient to permit a projectile to pass therethrough; a barrel nut having an interior barrel bore shaped to receive at least a portion of a firearm barrel therethrough and an outer-threaded distal end corresponding to the interior-threaded proximal end of the outer can to removably secure the outer can thereto, the barrel nut being operable to secure the firearm barrel to a firearm; and a monolithic baffle having: at least one intermediate baffle wall disposed proximal of the distal end of the outer can, the at least one intermediate baffle wall: having an intermediate longitudinal bore axially aligned with the longitudinal can bore; and extending radially outward to a shape substantially equal to the cross-sectional shape of the outer can interior to substantially prevent fluid from passing through the at least one intermediate baffle wall other than through the intermediate longitudinal bore; a proximal end portion having a proximal baffle wall defining a proximal longitudinal bore axially aligned with the intermediate longitudinal bore and the longitudinal can bore and shaped to receive at least a portion of the firearm barrel and removably secure thereto, the proximal baffle wall extending radially outward to a shape smaller than the cross-sectional shape of the outer can interior to permit fluid to pass from one side of the proximal baffle wall to the other in addition to through the proximal longitudinal bore; and a longitudinal baffle extent shorter than the interior longitudinal length such that, when the baffle and the outer can are installed on the firearm, the outer can and the barrel nut seal the baffle therein and define an interior proximal plenum extending from the proximal end portion to the barrel nut, the proximal baffle wall shaped to direct fluid ejecting from the firearm barrel distally back in an opposite direction into the interior proximal plenum as a muzzle brake.