The Navy is seeking longer-range precision weapons for its deck-mounted “5-inch” guns to better destroy enemy targets, defend maritime forces on the move in combat and support amphibious operations.
U.S. Navy Arleigh Burke-class guided-missile destroyer USS Mustin (DDG 89) fires its Mark 45 5-inch gun on the fo’c’sle during a live-fire exercise in the Western Pacific Ocean, April 16, 2026. Mustin ...