The Ithaca Model 37 Waterfowler in 20 gauge is a synthetic-stocked, weather-resistant configuration of the classic 37 in 20 gauge, providing lighter-than-12-gauge handling in a waterfowl-capable package for hunters who pursue smaller ducks and doves. Type: Shotgun Action: Pump-Action Caliber: 20 Gauge Capacity: 4 Year introduced: 1937, USA Weight: 5.75 oz Overall length: 46.5" Status: Active Intended use: Waterfowl/Hunting