Mk 45 Mod 4 Lightweight Naval Gun

The Mark 45 (Mk 45) is a U.S. Navy's lightweight naval gun mount, employed against surface and land targets. The gun mount includes a 20 round automatic loader drum (16-20 rounds per minute).

The Mk 45 Mod 4 gun mount upgrade includes a longer barrel (62 caliber versus 54 caliber of the older versions) that improves the gun's effectiveness. The Mk 45 mod 4 uses a modified flat-panel gun turret, designed to reduce its radar signature.

Credits: U.S. Navy videos by Mass Communication Specialist 3rd Class Taylor N. Stinson, Deanna C. Gonzales, Seaman Apprentice Drace Wilson, Austin Rooney

Thumbnail Credit: U.S. Navy photo by Mass Communication Specialist 3rd Class Deanna C. Gonzales

Derivative works: Military Archive

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