Master gunnery sergeant

Master Gunnery Sergeant
Master Gunnery Sergeant insignia
Country United States
Service branch United States Marine Corps
AbbreviationMGySgt
NATO rank codeOR-9
Pay gradeE-9
Formation1958
Next higher rankEquivalent to sergeant major
Next lower rankMaster sergeant

Master gunnery sergeant (MGySgt) is the 9th and highest enlisted grade in the United States Marine Corps. Master gunnery sergeants are senior staff non-commissioned officers (SNCOs) with the pay grade of E-9, equivalent to sergeants major and the Sergeant Major of the Marine Corps (though the latter is a single unique billet in the Corps, and is senior to all enlisted ranks).