Shield
Gules, a mullet Or bearing a stylized sunset of the first, overall a horseshoe Sable garnished of the second enclosing a silhouetted rider and horse Azure (Dark Blue).
Crest
That for the regiments and separate battalions of the Arizona Army National Guard: From a wreath Or and Gules, a giant cactus Proper.
Motto
ROUGH RIDERS
Shield
Yellow is the color traditionally used by Cavalry units. The star and sunset are adapted from the State flag of Arizona. The horseshoe denotes the unit's honorable history and cavalry tradition, while the horse and rider suggest Captain William Owen Buckey' O'Neil, a prominent soldier and citizen from Arizona, killed in action while serving in Cuba.
Crest
The crest is that of the Arizona Army National Guard.
The coat of arms was authorized on 9 January 1998.