Gules, a bendlet arched Or voided of the field.
That for the regiments and separate battalions of the Army Reserve: On a wreath of the colors 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.
KING OF BATTLE.
The narrow, arching bands represent Artillery trajectories.
The crest is that of the United States Army Reserve.
The coat of arms was originally approved for the 506th Field Artillery Battalion on 24 March 1958. It was redesignated for the 108th Regiment on 27 November 1959.