The Model 1400 was Winchester's first gas-operated semi-automatic shotgun, replacing both the Model 50 and 59. It featured a rotating bolt head and a simple front-locking gas system. Designed to compete directly with the Remington 1100. Type: Shotgun Action: Semi-Automatic Caliber: 12 Gauge Capacity: 4 Year introduced: 1964, USA Weight: 84 oz Overall length: 47" Status: Discontinued Intended use: Hunting, Sport Shooting