Over-Unders appeared in the early 20th century, first as built-to-order high-grade guns from England. John Browning designed the famous Superposed O/U so that over-under shotguns could be made ...

Browning designed the BAR in reaction to the requirement of an easily carried, lightweight automatic weapon for infantry use during World War I. The U.S. Army adopted the BAR early in 1918 and it ...