A gold color metal and enamel device 1 1/4 inches (3.18 cm) in height consisting of a wavy red scroll in base inscribed in gold with the words "THE SUMMIT OF SUPPRT," the scroll ends turned inward and upward and enclosing the bottom and sides of a blue area bearing between three gold stars two crossed forearms also gold issuant from the center area of the upper edge of the scroll (the arm to the right clad in shirt and coat sleeve and that in front and to the left in a sleeve of fringed buckskin) their hands supporting the lower corners of a red equilateral triangle bearing a gold sea lion with a gold short sword in his right paw.
The crossed arms of a statesman and a pioneer allude to the figures on the seal of Kentucky, the unit's home state, and their position reflects the basic mission of support. The blue field refers to the Pacific area where the Battalion participated in the World War II campaigns of New Guinea, Leyte and Luzon, represented by the three stars. The sea lion and scarlet triangle are adapted from the first Seal of the President of the Philippines, indicating an award of the Philippine Presidential Unit Citation and the scarlet scroll denotes the streamer of the Meritorious Unit Commendation received for service on Luzon.
The distinctive unit insignia was originally approved for the 103d Supply and Service Battalion on 12 October 1971. It was redesignated for the 103d Support Battalion on 11 January 1982.