| CPC F41A 21/30 (2013.01) | 20 Claims |
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1. A suppressor for a firearm defining a distal end and a proximal end, the suppressor comprising:
an inner body comprising:
a muzzle attachment portion defined at or proximate the proximal end of the suppressor; and
a plurality of baffles each defining an opening, wherein the openings of the plurality of baffles collectively define a linear projectile path through the inner body along an axis extending from the proximal end of the suppressor to the distal end of the suppressor defining an exit opening, wherein an expansion chamber is defined between the muzzle attachment portion and one of the plurality of baffles; and
an external shroud configured to at least partially cover the inner body, wherein the external shroud is configured to permit at least a portion of propellent gas within the inner body to exit the suppressor via a secondary opening disposed at a location between one of the plurality of baffles and the proximal end of the suppressor, wherein the secondary opening has an annular shape that extends circumferentially around the linear projectile path, wherein a size of the secondary opening is temperature dependent, such that the external shroud is configured to permit a greater gas flow at a first temperature than at a second temperature, and wherein the first temperature is greater than the second temperature.
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