Patent ID: 8307946

Claim:
A firearm suppressor for mounting on a firearm to suppress sound emanating from the firearm when fired, the suppressor comprising: a housing defining an interior; and a baffle insert positioned in the interior of the housing; wherein the baffle insert has at least two baffle wall portions dividing the interior of the housing into at least three baffle chambers, the baffle wall portions being spaced from each other in a longitudinal direction of the baffle insert; wherein the baffle insert defines a central longitudinal passage for a projectile fired from the firearm to pass through the insert; wherein the baffle insert defines a convoluted passage for combustion gases to pass through the insert, the convoluted passage being distinct from the longitudinal passage, the convoluted passage being in communication with the central longitudinal passage, the convoluted passage being defined by at least one auxiliary hole extending through the baffle wall portions; wherein a position of the at least one auxiliary hole in a first one of the baffle wall portions is rotated about the central longitudinal passage approximately 90 degrees from a position of the at least one auxiliary hole in an adjacent second one of the baffle wall portions.