The 20-gauge Remington 1100 is the best-selling semi-automatic 20-gauge shotgun in American history, providing the same gas-operated soft-recoil action in a lighter, faster-handling platform popular with upland hunters and youth shooters. Type: Shotgun Action: Semi-Automatic Caliber: 20 Gauge Capacity: 4 Year introduced: 1963, USA Weight: 224 oz Overall length: 47.5" Status: Active Intended use: Hunting, Upland, Sport