The Remington Model 1100 in 12 gauge with 28-inch barrel is the best-selling semi-automatic shotgun in American history with over 4 million produced. The gas-operated system significantly reduces felt recoil compared to recoil-operated semi-autos and provided a soft-shooting sporting shotgun that transformed the American clay target market. Still in production after 60 years. Type: Semi-Auto Shotgun Action: Gas-Operated Caliber: 12ga Capacity: 4 Year introduced: 1963, USA Weight: 7.6 oz Overall length: 48.5" Status: Active Intended use: Hunting, Competition