Shield
Per fess Gules and Buff, on two chevrons conjoined Argent, between in chief a firebomb Sable fimbriated of the third, enflamed Proper, bearing a fleur-de-lis Or and in base two swords in saltire, points up, hand guards of the fourth, blades of the third, a chevronel wavy Azure.
Crest
That for the regiments and separate battalions of the Army Reserve: From a wreath Argent 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.
Motto
SUSTAINING FREEDOM'S FIGHT.
Shield
Buff and red are the colors traditionally associated with Support units. Red denotes the unit's combat decoration. The fleur-de-lis, chevrons, and wavys suggest the unit's European campaign credits, during World War II. The firebomb symbolizes the battalion's past as an Ordnance unit. The chevrons and buff background allude to the "basin surrounded by mountains," describing the site of the city of Las Vegas and the location of the 314th Support Battalion. The crossed swords symbolize military readiness and the continuing responsibility to support the fight for freedom.
Crest
The crest is that of the United States Army Reserve.
The coat of arms was approved on 16 February 2007.