Ermines, on a fer-de-moline Argent, a Yang and Yin symbol Gules and Azure.
That 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.
The field of ermines alludes to the organization's European origin and activities during World War II. The fer-de-moline symbolizes the support mission provided by the unit during the Korean Campaign; the four extremities represent the four honors received for that action. The Yang and Yin signify the Taeguk of the Korean nation and attest to the Korean Presidential Unit Citation awarded to the unit. The disc, a representation of a wheel, alludes to the Quartermaster Corps.
The crest is that of the United States Army Reserve.
The coat of arms was originally approved on 22 January 1965. It was cancelled on 14 December 1979. The insignia was reinstated on 12 December 1996.