ShieldOr, a bend Gules, between in sinister chief a mullet and in dexter base the sails of an old Dutch windmill, both of the like; on a canton Azure, a fess dancetté of two points to chief and one to base Or, overall a chevron Gules and of the field fimbriated of the second (Or), all within a diminished border Sable fimbriated of the fifth (Or).
CrestThat for the regiments and separate battalions of the Army Reserve: On a wreath of the colors Or 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.
MottoTOUJOURS PRET ET AUDACIEUX (Always Ready and Fearless).
ShieldThe Regiment was originally organized in Texas, as shown by the Lone Star; it was then turned into Artillery for the period of the war, shown by the red bend, and reconstituted as Cavalry in New York City, shown by the windmill. The canton is the shield of the 51st Machine Gun Squadron, New York National Guard, old Squadron “A” of New York. More than fifty percent of the 303d Cavalry since its organization were ex-members of Squadron “A” and the 303d Cavalry thus indicates its foster parent.
CrestThe crest is that of the United States Army Reserve.
The coat of arms was approved on 24 October 1925. It was rescinded on 2 March 1959.