ShieldPer bend Azure and Gules, a bend nebuly Argent between in chief a sea lion holding in dexter paw a sword Or and in base a Philippine axe and a New Guinea sword club, saltirewise, point and axehead upwards, of the last.
CrestThat for the regiments and separate battalions of the Army Reserve: From a wreath Argent and Azure, 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.
ShieldScarlet and white are the colors of the Corps of Engineers. The sea lion with sword from the flag of the Philippine President refers to the Philippine Presidential Unit Citation awarded to the Battalion and the club and axe denote the New Guinea and Philippine (Leyte and Luzon) campaigns, World War II, in which the unit participated. The Battalion’s historic Engineer Aviation organization is represented by the blue chief and nebuly diagonal stripe which allude both to construction and maintenance of landing strips and providing bridges over waterways.
CrestThe crest is that of the United States Army Reserve.
The coat of arms was approved on 13 October 1970. It was amended to correct the blazon on 19 September 2016.