Dual gas-vent system, drilled and tapped receiver.  This autoloading shotgun model features an 18.5-inch (4+1) cylinder bore, standoff barrel with matte blue finish, and is equipped with a front red fiber optic bead sight.  Other features include a synthetic stock and forend, both dressed in KUIU Vias camouflage.  The Thunder Ranch logo is engraved on the right side of the receiver.