Upgraded MK 45 guns for US Navy
BAE Systems will upgrade five Mk 45 naval gun systems to the Mod 4 configuration for the US Navy, the company announced on 22 July.
Under the $70.6 million contract the company will carry out the MK 45 Mod 4 upgrades by the end of 2023.
The upgrade increases the gun system’s firepower and range by adding a structurally strengthened gun mount. The configuration increases firing energy by 50 percent, enabling munitions to travel faster and farther. A new fully digitised control system provides significantly greater computing power and features a touch-screen user interface.
MK 45 guns are deployed on the US Navy’s fleet of guided-missile Ticonderoga-class cruisers and Arleigh Burke-class destroyers. This upgrade work will extend the guns’ service life.
Related Equipment in Defence Insight
More from Naval Warfare
-
DSEI 2025: Red Cat expands into USV production with focus on combat-proven technology
At DSEI 2025, Red Cat outlines its expansion from UAVs into uncrewed surface vessels (USVs), positioning itself as a multi-domain defence provider spanning land, sea, and air.
-
Anduril Australia wins A$1.7 billion Ghost Shark XL-AUV contract
The vessels are expected to deliver a major boost to Australia’s undersea warfare capabilities, with production set to start immediately.
-
Royal Canadian Navy will start operating class 2 UAVs in 2028
Acquired under Canada’s Department of National Defence ISTAR UAS project, the drones will be deployed from the Halifax-class frigates.
-
Newest US Coast Guard cutters go after Chinese vessels sailing in the Arctic
Cutters Earl Cunningham and Storis have been monitoring five Beijing research vessels navigating in the North Pole.
-
US Navy selects 25 companies for up to $1.9 billion nuclear submarine contract
The multi-award contract will support the scheduled repair and maintenance of nuclear-powered attack submarines at the US Navy’s primary public shipyards.