Shield
Tenn, a dragoon in the uniform of the Mexican War mounted on a white horse brandishing a saber and charging a Mexican field gun defended by a gunner armed with a rammer all proper, in chief two eight-pointed mullets Or.
Crest
On a wreath of the colors (Or and Tenn) the head dress of the dragoons of 1836 Proper.
Motto
Toujours Prt (Always Ready).
Shield
The color of the facings of the old dragoon regiment was orange, which is used for the field of the shield; the insignia was an eight-pointed star of gold, two of them (conforming with the numerical designation) are placed on the shield. The traditional episode in the regiment is the charge of Captain May's squadron on the Mexican artillery at Resaca de la Palma which is commemorated by the principal charge on the shield.
Crest
The crest is self-explanatory.
The coat of arms was originally approved for the 2d Cavalry Regiment on 6 August 1920. It was amended to change the 6 pointed stars to 8 pointed stars to conform to the old dragoon star on 28 April 1924. The coat of arms was redesignated for the 2d Cavalry Reconnaissance Squadron on 31 July 1944. On 26 November 1946, it was redesignated for the 2d Constabulary Squadron. It was redesignated for the 2d Armored Cavalry Regiment (US Constabulary) on 17 March 1949. The coat of arms was redesignated for the 2d Armored Cavalry on 1 September 1955. The insignia was redesignated effective 16 April 2005, for the 2d Cavalry Regiment.