The Ithaca Model 37 Defense with 18.5-inch barrel and bottom-ejection design. Used by law enforcement and military for decades — the LAPD issued the Model 37 for many years. The lightness of the aluminum receiver makes it one of the easiest pump shotguns to carry on patrol. Type: Pump Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 5 Year introduced: 1960, USA Weight: 6 oz Overall length: 38.5" Status: Active Military use: Yes Intended use: Law Enforcement, Home Defense, Tactical