The Browning Auto-5 was the world's first successful semi-automatic shotgun, designed by John Browning and produced by FN in Belgium from 1902 to 1998 — a 96-year production run. Its distinctive humpback receiver shape is instantly recognizable. The long-recoil action was revolutionary: the barrel and bolt recoil together the full length of the shell before unlocking. It served military and law enforcement uses and was one of the most popular hunting shotguns of the 20th century. Type: Shotgun Action: Semi-Automatic Caliber: 12 Gauge Capacity: 5 Year introduced: 1902, Belgium Weight: 8.5 oz Overall length: 49.5" Status: Discontinued Intended use: hunting, military, collector, historical