Per fess enhanced Argent and Azure in chief a representation of Diamond Head Sable issuant from base overall a Hawaiian warrior holding in dexter hand a spear palewise of the last wearing a feather cloak Or charged with crescents of the third and a feather helmet Gules a border of the like.
That for the regiments and separate battalions of the Hawaii Army National Guard: On a wreath of the colors Argent and Azure, a dolphin embowed hauriant Argent, in his mouth a key fesswise Or.
HIKI NO (Certainly, It Can Be Done).
Scarlet is the color for Artillery organizations. Participation by the unit in the Hawaiian Rebellion of 1895 is indicated by the Diamond Head, where one important engagement occurred. The Hawaiian warrior commemorates the ancient warrior, King Kamehameha I, who founded the Hawaiian Kingdom.
The crest is that of the Hawaii Army National Guard.
The coat of arms was originally approved for the 227th Engineer Battalion on 27 July 1962. It was redesignated for the 487th Artillery and amended to change the color of the border on 1 March 1966. The insignia was redesignated for the 487th Field Artillery Regiment on 24 July 1972.