Gules, two palets Argent (Silver Gray) surmounted by an isosceles triangle counterchanged.
That for the regiments and separate battalions of the Missouri Army National Guard: From a wreath Argent and Gules, a grizzly bear rampant Proper.
VELOX SUSCIPIO (Fast Support With Purpose And Direction).
Red represents power. The triangle symbolizes strength, stability, and the mission of the unit. Silver gray signifies the metal pewter, a metal alloy made up of multiple metals, alluding to the multiple units that composed the Battalion. The two pales denote military strength, combined with the triangle illustrates "311," the unit's numerical designation.
The crest is that of the Missouri Army National Guard.
The coat of arms was approved on 3 October 2007.