Master USN 5in/62 (12.7 cm) Mark 45 barrels 1:700

Used on:

United States:

- New-construction Arleigh Burke class DDG's. First installed on USS Winston Churchill DDG-81

- Can replace existing 5"/54 (12.7 cm) mounts

- Modernized Ticonderoga (Flight II) CG-47 class

Republic of Korea:

- KDX II destroyers

Japan:

- Kongo class Aegis destroyers

Denmark:

- Flexible Support Ships.