Shield:
Gules, on a palmetto tree eradicated Or a Lorraine cross Azure.

Crest:
On a wreath Or and Gules, issuing from two pairs of wings conjoined, elevated and addorsed Argent a lozenge of the like bearing a four-bastioned fort one bastion to chief parti per pale of the second and Azure charged with a lion’s face Gold.

Motto:
VOLENS ET POTENS (Willing and Able)

Symbolism:
Shield: The shield is scarlet for Artillery; the palmetto tree, representing South Carolina, alludes to the district to which the unit was allocated.  The Lorraine cross represents service in the Lorraine sector, France.

Crest:
The design of the crest commemorates three of the unit’s especially noteworthy actions in World War II; i.e., the amphibious assault at Maori, Italy, the glider assault into Normandy, and participation in the Battle of the Bulge.  The two pairs of wings from the arms of the Province of Salerno, where Maori is located, refer to that action.  They also refer to the unit’s service as a glider unit during World War II and its continued assignment to airborne organizations.  The lion’s face, alluding to the lion “gardant” in the arms of Normandy, stands for the assault into that province of France.  The fort represents Bastogne and the white background the snow covered terrain of the Battle of the Bulge.  The red and blue vertical divisions of the fort is taken from the arms of Bastogne; the bastions overlooking four directions refer to its strategic location at the cross roads of major lines of communication.  The red, white and blue color combination of the design also alludes to the unit’s war service with the “All American” Division, the 82d Airborne.   

Background:
The coat of arms was originally approved for the 320th Field Artillery Regiment, Organized Reserves on 27 July 1925.  It was redesignated for the 320th Field Artillery Battalion on 23 April 1942.  It was redesignated for the 320th Glider Field Artillery Battalion on 22 October 1942.  The insignia was redesignated for the 320th Airborne Field Artillery Battalion and amended to delete the Organized Reserves’ crest on 15 October 1951.  It was redesignated for the 320th Artillery Regiment on 24 September 1958.  It was amended to add a crest on 1 April 1965.  Effective 1 September 1971, the insignia was redesignated for the 320th Field Artillery Regiment.  It was amended to correct the colors of the wreath in the blazon of the crest on 8 November 1972.  It was amended to correct the blazon of the crest on 3 February 2005.