The Ithaca Model 37 Featherlight with 28-inch barrel. One of the most distinctive pump shotguns ever made — features the same bottom-loading, bottom-ejection design first developed in 1933 by John Pedersen. Aluminum receiver makes it the lightest production 12 gauge pump. Type: Pump Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 4 Year introduced: 1937, USA Weight: 6.5 oz Overall length: 48.5" Status: Active Intended use: Field, Hunting, Collector