Final answer:
Navy personnel who qualify as Sharpshooters are authorized to wear a bronze 'S' device on their Navy Rifle and Pistol Marksmanship ribbon bars.
Step-by-step explanation:
Personnel in the U.S. Navy who qualify as Sharpshooters with the rifle or pistol are authorized to wear a distinctive device on their Navy Rifle and Pistol Marksmanship ribbon bars. For those who have achieved Sharpshooter qualification, a bronze 'S' device, referred to as the Sharpshooter device, is worn on the service ribbon. This device is used to denote the level of proficiency that the sailor has attained. In addition to the Sharpshooter device, there are other marksmanship devices such as Expert and Marksman, each having its own specific insignia to be worn on the ribbon bars, indicating the level of marksmanship qualification attained by Navy personnel.