when was the first fully automatic gun made
Automatic rifle The world's first automatic rifle was the Italian Cei-Rigotti. Introduced in 1900, these 6.5mm Carcano or 7.65×53mm gas-operated, selective-fire, carbines attracted considerable attention at the time.[1][2] They used 10-, 20- and 50-round box magazines.[2] The Cei-Rigotti had several failings, including frequent jams and erratic shooting.[2] In the end, no Army took an interest in the design and the rifle was abandoned before it could be further developed.[2]
Browning Auto-5 The Browning Auto-5 was the first mass-produced semi-automatic shotgun. Designed by John Browning in 1898 and patented in 1900,[4] it was produced continually for almost 100 years by several makers with production ending in 1998. It features a distinctive high rear end, earning it the nickname "Humpback". The top of the action goes straight back on a level with the barrel before cutting down sharply towards the buttstock. This distinctive feature makes it easy to identify A-5s from a distance. A-5s were produced in a variety of gauges, with 12 and 20 predominating; 16 gauge (not produced between 1976 and 1987) models were also available. The gun saw military service worldwide between World War I and the Vietnam War. A Remington Model 11 was used in the suicide of Kurt Cobain.[5]