TRITIUM / FIBER OPTIC SHOTGUN FRONT SIGHT The ultimate tactical shotgun sight.Uses our patentedtechnology.Unbelievable transition through all light conditions.Glows in the dark.Uses the brightest tritium available.CNC-machined construction.Concealed fiber cannot be seen by target.Green front. The ultimate tactical shotgun sight. Uses patented TFO technology. Glows in the dark. CNC machined steel construction. Concealed fiber cannot be seen by target. Green front.