Shield: Or, a fess Sable between three crescents two and one of the like.
Crest:
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.
Motto: WE WILL ALWAYS WIN.
Symbolism:
Shield: The shield of the Regiment is the shield of Colonel Nathaniel Rochester, the Revolutionary War soldier and manufacturer of arms (born 1752, Virginia; moved to Genessee Valley, New York, 1810; Colonel Rochester moved to the town in 1819 - died 1831).
Crest: The crest is that of the U.S. Army Reserve.
Background:
The coat of arms was originally approved for the 391st Infantry Regiment, Organized Reserves on 1924-08-11.
It was redesignated for the 391st Regiment (Training), Army Reserve on 1960-10-18.
The coat of arms was amended to add a motto on 1969-07-03.