ShieldPer fess paley of six Or and Sable a bend counterchanged, and Azure billetté of the first; overall a falcon rising on a mount couped to base of the last.
CrestThat for the regiments and separate battalions of the Army Reserve: From a wreath Or and Sable, 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.
MottoVIRTUTE ET FIDE (By Bravery and Faith).
ShieldThe upper half of the shield is taken from the arms of Maryland, in which state the 313th Infantry was originally organized; the lower half is from the arms of Franche-Comte, the training area of the 313th Infantry in France; and the falcon represents Montfaucon, the principal engagement in which the regiment participated during World War I.
CrestThe crest is that of the United States Army Reserve.
The coat of arms was originally approved for the 313th Infantry Regiment on 15 June 1927. It was amended to withdraw "Organized Reserves" from the designation and to delete the Organized Reserves' crest on 20 May 1959. It was amended to reinstate the crest of the Army Reserve and revise the symbolism on 17 June 1970. The insignia was redesignated for the 313th Regiment on 18 August 1999. It was amended to correct the blazon of the crest on 12 April 2011.