"5219"^^ . . . . . . "1970.0"^^ . . . . . . . . . . . . . . . . "M1 Underwater Defense Gun"@en . "yes"@en . . . "The M1 Underwater Defense Gun, also called the Underwater Defense Gun Mark 1 Mod 0, is an underwater firearm developed by the United States during the Cold War. Similar to other underwater firearms, it fires a special 4.25-inch (108 mm) metal dart as its projectile."@en . . . . . . . . . "Mk 1 Underwater Defense Gun"@en . . . "The M1 Underwater Defense Gun, also called the Underwater Defense Gun Mark 1 Mod 0, is an underwater firearm developed by the United States during the Cold War. Similar to other underwater firearms, it fires a special 4.25-inch (108 mm) metal dart as its projectile."@en . . . . . . "United States"@en . "Mark 59 Mod 0 Projectile"@en . "1075057511"^^ . "16641484"^^ . . "12"^^ . . . "Empty: Loaded:"@en . . "6"^^ . "M1 Underwater Defense Gun"@en . . . . . . . . . . "Falklands War"@en . . . . . . . . . "6"^^ . . . . . . . .