A Gold color metal and enamel device 1 5/32 inches (2.94 cm) in height overall consisting of a shield blazoned: Azure, a bend wavy Argent between an oak tree eradicated and key fesswise Or. Attached below and to the sides of the shield is a Gold scroll inscribed "ARMS SECURE PEACE" in Blue letters.
The shield is blue for Infantry. The bend wavy represents the Regiment's service on the Mexican border along the Rio Grande River and the Aisne River in France along which the Regiment participated in operations during World War I. The oak tree symbolizes the Meuse-Argonne Operation during which the Regiment received its baptism of fire. The gold key, taken from the Army of Cuban Occupation Medal, indicates the service during the Spanish-American War.
The distinctive unit insignia was approved on 17 April 1929.