The Remington Model 1100 is one of the best-selling semi-automatic shotguns in American history, with over four million produced. Gas-operated with a fixed piston and interceptor locking lug system, the 1100 was the first American semi-auto shotgun to reliably handle light target loads. It set the standard for American semi-auto shotgun design for decades. Type: Shotgun Action: Semi-Automatic Caliber: 12 Gauge Capacity: 4 Year introduced: 1963, USA Weight: 7.5 oz Overall length: 48" Status: Active Intended use: Hunting, Trap, Skeet, Sporting Clays