Shield
Gules, a stand of grape Proper.
Crest
On a wreath of the colors Or and Gules, a masonry tower Proper charged with a maple leaf Vert.
Motto
Primus aut Nullus (First or Not at All).
Shield
The shield is scarlet for Artillery. The stand of grape is to commemorate the remark attributed to General Zachary Taylor at the Battle of Buena Vista, "A little more grape, Captain Bragg."
Crest
The tower represents participation of a battery under Major Robert Anderson in the defense of Fort Sumter in 1861. The maple leaf commemorates service in the War of 1812, in Canada.
The coat of arms was originally approved for the 1st Field Artillery Regiment on 16 February 1921. It was redesignated for the 1st Field Artillery Battalion on 8 March 1951. It was cancelled on 21 April 1959. It was restored and authorized for the 1st Field Artillery Regiment on 1 September 1971.