Per fess embowed Gules and Sable edged Or, a grape leaf fimbriated of the third, in chief a liberty tiara with seven rays of the last.
That for the regiments and separate battalions of the Army Reserve: From a wreath Or and Gules, the Lexington Minute Man Proper. The statue of the Minute Man, Captain John Parker (H.H. Kitson, sculptor), stands on the common in Lexington, Massachusetts.
SERVE AND SUPPORT.
Red is the color used by Support units. The grape leaf represents the Rhineland and the battle honor awarded to the organization during World War II. The tiara suggests the Statue of Liberty, signifying the unit's home site; the rays allude to the 3 to 7 companies commanded by the organization.
The crest is that of the U.S. Army Reserve.
The coat of arms was approved effective 16 September 2006, for the 389th Support Battalion.