Master Gunnery Sergeant

The Master Gunnery Sergeant is One of the highest military ranks (non-commissioned) of U.S. Marine Corps. In the Marine Corps is the title refers to the ninth degree of military Hierarchy next military ranks Sergeant Major and Sergeant Major U.S. Marine Corps.

The Master Gunnery Segeant are also called Master Gunn or Master Gunnys, of course, in cerimonial events they can't be called by they nicknames.

The Master Gunnery Sergeant is also the equivalent of the Russo/Soviet Commander Senior Sergeant