Shield
Or, a bend Gules, on a sinister canton of the like a sun in splendor of the field charged with the numeral "13" Sable (for the 13th Cavalry), in base the insignia of the regiment Proper (a Red hour-glass on a Black circle surrounded by a Green band).
Crest
On a wreath of the colors Or and Gules, a horse's head armored Proper.
Motto
OUR COUNTRY OUR REGIMENT.
Shield
The 21st Cavalry was organized in June 1917 from the 13th Cavalry, and converted into Field Artillery as the 79th, in November of the same year. Its original Cavalry character is shown by the color of the field, its Field Artillery service by the red bend. The canton shows a device from the badge of the 13th Cavalry, the parent organization. The regiment insignia in base is the shoulder sleeve insignia of the 7th Division with colors reversed, surrounded by a green band.
Crest
The armored horse's head represents Cavalry and Armor, respectively.
The coat of arms was originally approved for the 79th Field Artillery Regiment on 1 September 1920. It was redesignated for the 79th Artillery Regiment on 14 April 1958. The insignia was redesignated effective 1 September 1971, for the 79th Field Artillery Regiment.