Staff Sergeant of Marines
The first staff non-commissioned officer rank is indicated by three chevrons with a single rocker connecting them and crossed rifles in between chevrons and rocker. The pay grade is E-6, and the Army equivalent is also a staff sergeant who wears the same insignia except for the color and without the crossed rifles. In the Air Force, the rank is Technical Sergeant which is indicated by five inverted chevrons with the top three partially covered with a blue circle containing a star. Navy and Coast Guard equivalents are Petty Officer First Class and their insignia of three inverted chevrons topped with a Navy eagle is worn on the left arm only.