The Mossberg 500 Tactical is the home-defense and law-enforcement configuration of the 500 platform, featuring a pistol-grip stock, cylinder bore barrel, and ghost-ring or bead sights. Widely used by civilian home defenders and correctional institutions. Type: Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 5 Year introduced: 1961, USA Weight: 224 oz Overall length: 38.5" Status: Active Intended use: Home Defense, Law Enforcement, Tactical