Classic American pump shotgun with a distinctive bottom-loading, bottom-ejecting design that makes it inherently ambidextrous. The 37 remained essentially unchanged for decades and is considered one of the finest pump shotgun actions ever designed. Type: Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 4 Year introduced: 1937, USA Weight: 6.75 oz Overall length: 47.5" Status: Active Intended use: Hunting