The Mossberg 500 Combo is a combination package including both a 28-inch vent-rib bird barrel and an 18.5-inch tactical barrel, covering both field and home defense applications with a single shotgun frame. Type: Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 5 Year introduced: 1961, USA Weight: 7.5 oz Overall length: 48" Status: Active Intended use: Hunting/Home Defense