.410 bore version of the 1100 semi-automatic on a dedicated sub-gauge receiver. Uses a scaled-down version of the fixed-piston gas system, making the .410 1100 one of the softest-shooting .410 firearms ever produced. Popular for teaching new shooters who find pump actions difficult. Type: Shotgun Action: Semi-Automatic Caliber: .410 Bore Capacity: 4 Year introduced: 1969, USA Weight: 6.5 oz Overall length: 45.5" Status: Active Intended use: Youth, Small Game, First Shotgun