The Winchester Model 1897 was the first successful pump-action shotgun and established the slide-action repeating shotgun as a practical combat and hunting weapon. Designed by John Browning, it served the US military in WWI (where its ability to fire while pumping terrified German troops) and WWII. Its exposed hammer allows visual confirmation of the chamber status. Over one million were produced through 1957. Type: Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 5 Year introduced: 1897, USA Weight: 8 oz Overall length: 49" Status: Discontinued Military use: Yes Intended use: military, hunting, collector, historical