Patent attributes
A firearm accessory system that self-tightens in response to firing comprises an interface structure (e.g., flash hider mount) threadably coupleable to a muzzle end of the firearm, and a suppressor threadably coupleable to the interface structure at a proximal end of the suppressor. At least one of the interface structure or the suppressor can comprise a plurality of discharge gas deflector openings formed at an angle relative to a central axis, and that exhaust discharge gases out through a distal end of the suppressor. In response to firing a projectile through the interface structure and the suppressor, discharge gases flowing through the plurality of discharge gas deflector openings cause a torsional force to tighten the respective one of the interface structure or the suppressor to the respective one of the muzzle end or the interface structure.