Shield
Quartered per saltire Azure (Dark Blue), Tenn, Gules masoned Argent and Celeste (Oriental Blue), on a saltire of the fourth, flanked in dexter by a key in pale, wards downward and inward and in sinister a lightning bolt palewise Argent (Silver Gray), two scimitars in saltire points downward Sable.
Crest
That for the regiments and separate battalions of the Indiana Army National Guard: From a wreath Argent and Azure (Dark Blue), a demi-lion rampant Argent, holding in dexter paw a laurel branch Vert.
Motto
NUNQUAM DECEDIMUS (We Never Quit).
Shield
National flag blue is the color traditionally associated with Infantry units, referring to the units past branch affiliation. The following colors and its symbols represent the elements that comprise the former Special Troops Battalion: orange and the lightning bolt denote the Signal branch, signifying the units communication capabilities; the masoned scarlet suggests the Engineer functions and current designation; and oriental blue and the key indicate the Military Intelligence responsibilities and the ability to be First to Know. The saltire alludes to cooperation. The crossed scimitars symbolize military readiness and the Battalions current campaign participation in Southwest Asia.
Crest
The crest is that of the Indiana Army National Guard.
The coat of arms was originally approved for the Special Troops Battalion, 76th Infantry Brigade Combat Team on 1 July 2008. It was redesignated for the 776th Engineer Battalion with the symbolism revised effective 1 September 2014.