Function: Fully-automatic, lightweight gun mount.





Description: The 54-caliber (Mk 45) lightweight gun provides surface combatants accurate naval gunfire against fast, highly maneuverable surface targets, air threats and shore targets during amphibious operations.





Background: This lightweight gun system offers significant improvements in reliability and maintainability over the 54-caliber Mk 42 gun systems. The Mk 45 is controlled by either the Mk 86 Gun Fire Control System or the Mk 160 Gun Computing System.





General Characteristics, Mark 45 5"/ 54-Caliber Lightweight Gun





Caliber:

5 inch (12.7 cm)





Range:

13 nautical miles (14.9 statue miles)





Magazine Capacity:

475-500 rounds per magazine







Type of Fire:

16-20 rounds per minute automatic





Date Deployed:

1971 (Mark 45)