M1918 Browning Automatic Rifle
In between World War I and World War II, the M1918 was given to all U.S. naval landing forces.  The weapon could be found on board most U.S. ships. Each BAR had a spare barrel.  Big ships often had over 200 BARs on board.  Many of the U.S. Navy BARs were still used until the 1960s.