Master Gunner is an advanced skill school of the armor, infantry and artillery branches of the U.S. Army, and armor branch of the U.S. Marine Corps. It requires a high degree of skill and test-taking ability, leading to a low graduation rate. The rank and rate of Master Gunner, along with a distinctive insignia, was used by the U.S. Army during World War I.

The primary mission of the Army Master Gunner is to aid and assist commanders at all echelons in the planning, development, execution, and evaluation of all crew-served weapons related training (individual, crew, and collective).

*Approx 2″ width, chrome plated, zinc alloy
*Attaches with 3M adhesive