American missiles were used to engage most of the enemy targets, but the destroyer was forced to employ the five-inch gun ...

The company will extend the barrel of the Mk 45, strengthen the gun mounts and incorporate a fully digital control system.

The gun was first deployed in 1971 as the Mk 45 Mod 0, and has been updated in the more than five decades since.

Advanced firepower will continue to play a critical role at sea as Sailors face advanced threats ...