Born from the need to replace the venerable WW2-era Oerlikon 20-millimeter autocannon, the Mark 38 25-millimeter Machine Gun System became the Navy's formidable defense against surface threats.
Gunner's Mate 2nd Class Jonathan Salazar and Gunner's Mate 2nd Class Charles Reece manually fire the Mark 38 Mod 3 25 mm machine gun system during a pre-action calibration firing exercise aboard the ...