The eighth enlisted grade, ranking above sergeant first class and below sergeant major, command sergeant major, Sergeant Major of the Army and equal in grade but not authority to a first sergeant. It is abbreviated as MSG and indicated by three chevrons above three inverted arcs, commonly referred to as "rockers". A master sergeant is typically assigned as a brigade-level section noncommissioned officer in charge and serves as the subject matter expert in his or her field, but may also hold other positions depending on the type of unit. The equivalent-grade first sergeant is the senior noncommissioned officer of a company, battery, or troop. When holding the position of first sergeant, while uncommon, the master sergeant is referred to as "first sergeant"; however, when not in the position of first sergeant, master sergeants are addressed as "sergeant". This is the standard address for all pay grades E-5 through E-8. Use of the term "top" or "master sergeant" is not a requirement, but is considered courteous and remains to be at the discretion of the one addressing the master sergeant.
Tags: master, sergeant, retired, retiree, veteran
the eighth enlisted rank in the U.S. Marine Corps, just above gunnery sergeant, below master gunnery sergeant, sergeant major, and Sergeant Major of the Marine Corps. It is equal in grade to first sergeant. It is abbreviated as "MSgt." In the U.S. Marine Corps, master sergeants provide technical leadership as occupational specialists at the E-8 level. General command leadership at this paygrade is provided by the separate rank of first sergeant.
Tags: sergeatns, us, officer, non-commissioned, non-com