ブローニング・オート5 オート5 Auto-5 A-5
[b]The Browning Automatic-5[/b] or simply Auto-5 or A-5 is a recoil-operated [b]semi-automatic [[shotgun]][/b] designed by John Browning. It was the first successful semi-automatic shotgun design, and remained in production until 1998.

It was the first mass-produced semi-automatic shotgun. Designed in 1898 and patented in 1900, 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 shotgun saw [[military]] service worldwide from [[World War I]] through the [[Vietnam War.]] The weapon was used heavily by members of the [[Special Air Service]] in the Malayan Emergency, who found the semi-automatic shotgun perfect for close quarter jungle fighting. 

h4. See also
* [[combat shotgun]]
* [[List of weapons]]
* Wikipedia page: "Browning Auto-5":[https://en.wikipedia.org/wiki/Browning_Auto-5]
browning auto 5