United States Air Force Chief Master Sergeant Rank Insignia Patch E9, CMSgt

A Rank of Chief Master Sergeant is a Non-Commissioned Officer, or NCO, with the grade of E-9 in the US Air Force. Chief Master Sergeant (CMSgt) is the ninth, and highest, enlisted rank in the U.S. Air Force and the U.S. Space Force, just above Senior Master Sergeant, and is a senior non-commissioned officer rank. The official term is "Chief Master Sergeant" or "Chief".

Attaining the rank of Chief Master Sergeant is the pinnacle of an Air Force enlisted person's career. Some Chief Master Sergeants manage the efforts of all enlisted personnel within their unit or major subsection while others run major staff functions at higher headquarters levels. All Chief Master Sergeants are expected to serve as mentors for non-commissioned officers and junior enlisted members, and to serve as advisers to unit commanders and senior officers.

By federal law, no more than 1.25% of the Air Force enlisted force may hold the rank of chief master sergeant.

Original Fabric Insignia patch with beige/khaki backing and Navy Blue embroidery. Large / Size 1 / Men's size insignia patch