"1000"^^ . "The Colt-Browning Mk 12 was a 20 mm cannon widely used by the United States Navy after World War II."@en . . "20"^^ . "Colt Mk 12"@en . "yes"@en . "Gas-operated reloading"@en . "20.0"^^ . . "1950.0"^^ . . "The Colt-Browning Mk 12 was a 20 mm cannon widely used by the United States Navy after World War II."@en . . . . . . "United States"@en . "Colt Mk 12 cannon"@en . . "Mk 12 cannon of a RNZAF Douglas A-4K Skyhawk."@en . "Vietnam War, Falklands War, Gulf War"@en . .