The Winchester Model 97 Riot Gun is a short-barreled police and riot-control configuration with a 20-inch barrel. Used by U.S. law enforcement from the 1900s through the 1950s and by the U.S. military in WWI and WWII for guard duty and limited combat use. The slam-fire capability was exploited in close-quarter military situations. Type: Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 5 Year introduced: 1897, USA Weight: 112 oz Overall length: 40.5" Status: Discontinued Military use: Yes Intended use: Military, Law Enforcement, Historical