Shield
Gules, two pallets Argent, overall a sheaf of four arrows behind a garb pierced by a fishhook fesswise all Or and charged with an Aztec sun symbol of the first.
Crest
On a wreath of the colors Or and Gules, an escallop Or bearing a Lorraine cross Azure, surmounted by a kampilan and a kris saltirewise Gules fimbriated of the first.
Motto
AUDACIA (By Daring Deeds).
Shield
The two white stripes on the red field taken from the shield of the 4th Coast Artillery constitute the campaign ribbon of the War of 1812, depicting the age of the oldest units of the Regiment. The arrows from the crest of the 4th Coast Artillery represent participation in the Indian Wars and the numerical designation of the Regiment. The garb and fishhook refer to the Civil War, the battle of Gettysburg in the wheat fields, the fishhook being the shape of the Federal lines. The Aztec sun from the distinctive insignia of the 4th Field Artillery alludes to Mexican service.
Crest
The Lorraine Cross commemorates service in World War I (4th Coast Artillery). The escallop is for service in the Pacific theater World War II, and the kris and kampilan symbolize the Philippines for which the 4th Antiaircraft Artillery Battalion was awarded the Philippine Presidential Unit Citation.
The coat of arms was approved for the 4th Artillery Regiment on 21 April 1959. It was cancelled on 23 August 1971.