United States Navy E-4/5/6 Fire Controlman Rating Badge
Criteria: Worn by Fire Controlman (FC) with ranks from Petty Officer 3rd Class (E-4) to Petty Officer 1st Class (E-6). Fire Controlmen are typically responsible for maintaining all of the control mechanisms used in the weapons systems aboard combat ships of the USN. They operate and repair all of the equipment used by these systems including radars, computers, weapons direction equipment, rangefinders, gyroscopes and targeting systems.
The badge is sold with all 3 chevrons below the rating for E-6, and can be tailored down to the other two chevrons.