The Stevens Model 520-30 Trench Shotgun WWII is a usa-made pump-action shotgun chambered in 12 gauge, introduced in 1941. Primary use: hunting, home_defense. Type: Shotgun Action: Pump-Action Caliber: 12 gauge Capacity: 5 Year introduced: 1941, USA Weight: 96 oz Overall length: 47.5" Status: Discontinued Military use: Yes Intended use: hunting, home_defense