The 500 Tactical Tri-Rail adds three accessory rails — one on top for optics and one on each side of the forend — from the factory. A 18.5-inch barrel and synthetic stock complete the tactical package. One of the first factory pump shotguns to ship with side forend rails. Type: Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 6 Year introduced: 2010, USA Weight: 120 oz Overall length: 38.5" Status: Active Intended use: Tactical, Home Defense, Law Enforcement