Shield
Azure, in chief three mullets one and two, the lower ones with two points up and one-half the size of the upper, in base a fleur-de-lis Argent.
Crest
That for the regiments and separate battalions of the Army Reserve: On a wreath of the colors (Azure and Argent) 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
TOUJOURS PRT (Always Ready).
The shield is blue for Infantry; the three stars are taken from the state flag of Minnesota, the "North Star State," the large star at the top representing the North Star. The fleur-de-lis symbolizes the service of the organization in France during World War I.
The coat of arms was originally approved for the 351st Regiment Infantry, Organized Reserve on 28 Apr 1928. It was amended to delete the crest on 2 Dec 1955. On 12 Aug 1960 the coat of arms was redesignated with the Army Reserve crest added for the 351st Regiment.