A metal and enamel device one inch (2.54 cm) in height consisting of a gold eight pointed star of rays surmounted by a green palmetto leaf charged with a silver color fleur-de-lis, on a green ribbon scroll forming the base of the device, the regimental motto "Toujours Prt" in gold metal letters.
The eight-pointed star insignia worn by dragoons, the 2d Cavalry having been originally formed as the Second Regiment of Dragoons in 1836. The palmetto leaf represents the Regiment's first action against the Seminole Indians in Florida, where the palmetto leaf grows in abundance. The fleur-de-lis is for combat service in France in both World War I and World War II. The motto "Toujours Prt" (Always Ready) expresses the spirit and lan of the Regiment.
The distinctive unit insignia was originally approved for the 2d Cavalry Regiment on 16 January 1923. The insignia was amended to change the 6 pointed star to a 8 pointed star to conform to the old dragoon star on 28 April 1924. On the 23 March 1931, it was amended to prescribe the method of wear. It was redesignated for the 2d Constabulary Squadron on 21 January 1948. The insignia was redesignated for the 2d Armored Cavalry Regiment (US Constabulary) on 17 March 1949. It was redesignated for the 2d Armored Cavalry Regiment on 1 September 1955. The distinctive unit insignia was amended to change the description on 20 August 1965. It was redesignated effective 16 April 2005, for the 2d Cavalry Regiment.