Which collar device indicates the rank of Chief Warrant Officer 4 (CWO4) in the Marine Corps?

The collar device that indicates the rank of Chief Warrant Officer 4 (CWO4) in the Marine Corps is characterized by a single bar device with a red background and two silver breaks. This specific design signifies that the individual has achieved the rank of CWO4, distinguishing it from other ranks within the Chief Warrant Officer category. The two silver breaks are a unique identifier for CWO4, as each break in the collar device represents a higher level of rank within the Chief Warrant Officer ranks.

In the context of Marine Corps insignia, the color and number of breaks or bars in the collar device help create a clear visual representation of rank for enlisted personnel and officers alike, maintaining a structured military hierarchy. Understanding these insignia is crucial for proper military protocol and recognition among service members.