US Patent 8939057 Firearm suppressor

Embodiments of the invention relate to a dynamic suppression mechanism for a firearm. Multiple chambers are aligned within a housing, with adjacently positioned chambers separated by a partition. A central aperture is provided within the partition(s) to accommodate the projectile and form part of the projectile path, and multiple relief ports are annularly arranged around the central aperture. As the projectile travels through the path and through the length of the housing, the relief ports use gas byproduct released from the projectile as an elastic medium to muffle concussive forces and mitigate flash as the projectile is released from the body.