Abstract: A flash hider that suppresses the visible flash signature during the discharge of a firearm, the flash hider may be connected to an end of a firearm suppressor. The flash hider includes a body having a first end, a second end, and a projection that extends from the second end. The flash hider has a central bore having a first portion and a second portion, the second portion being tapered. The flash hider may include a first plurality of apertures through the projection and a plurality of annular grooves on an inner surface of the projection. The flash hider may include a second plurality of apertures located within the second portion of the central bore and a plurality of flow ports connecting the second plurality of apertures to a third plurality of apertures located in the first end of the body.