The branch insignia of the United States Army Ordnance Corps also uses this symbol, the grenade being symbolic of explosive ordnance in general. The United States Marine Corps uses the grenade as part of the insignia for one officer rank and one staff NCO rank on their uniforms. Chief warrant officers designated as marine gunners replace the rank insignia worn on the left collar with a "bursting bomb" and a larger "bursting bomb" insignia is worn above the rank insignia on both shoulder epaulets when a coat is worn. Additionally, the rank insignia for master gunnery sergeant has three chevrons pointing up, with four rockers on the bottom. In the middle of this is a bursting bomb or grenade. U.S.  Navy aviation ordnanceman's rating badge features a winged device of similar design.
