ShieldVert, on a dodecafoil Or surmounted by a frontiersman statant affronté garbed in sombrero, leather tunic, short breeches and boots, grasping in his sinister and belted with cartridge, all Proper.
CrestThat for the regiments and separate battalions of the Army Reserve: From a wreath Or and Vert, 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.
MottoCOMIS SED FORTITER (Courteous Yet Resolute).
ShieldThe yellow and green are colors of the Military Police. The dodecafoil represents the sunflower, the state flower of Kansas, the state of activation. The frontiersman or scout with the appearance of alertness and readiness symbolizes the functions of the Battalion. The motto is expressive of the characteristics of the personnel in the performance of their duties.
CrestThe crest is that of the United States Army Reserve.
The coat of arms was originally approved for the 742d Military Police Battalion on 11 January 1943. It was redesignated for the 304th Military Police Battalion and amended to add the Army Reserve crest on 26 August 1957. It was amended to update the blazon on 3 June 1999.