What adornment signifies the rank of Gunnery Sergeant?

The adornment that signifies the rank of Gunnery Sergeant in the Marine Corps is characterized by three stripes, which indicate the rank, accompanied by crossed rifles and two rockers beneath the insignia. This combination of elements specifically signifies the rank level held, with the stripes representing service time and the crossed rifles indicating the Marine Corps' infantry background. The inclusion of two rockers beneath the three stripes distinguishes the Gunnery Sergeant rank from other ranks, ensuring that it is easily identified among other non-commissioned officer ranks. This structure provides a clear visual representation of rank and authority within the military hierarchy.

The other options do not accurately reflect the specific combination of stripes and rockers that denote the Gunnery Sergeant rank. Each incorrect option features different variations of stripes and adornments that are associated with different ranks or insignia in the Marine Corps.