Watch the BAE Systems 127mm Mk 45 Mod 4 naval gun in action delivering precision, power, and rapid-fire capability. As a mainstay on modern warships, this advanced artillery system combines ...

The destroyer Rafael Peralta fires its Mark 45 5-inch light-weight gun during a live-fire exercise while operating in the Philippine Sea in January 2023. (MC1 Greg Johnson/U.S. Navy) 30,899 people ...