Mens Dog Tag Necklace with Army Engraving. From its ball chain to army engraving, this men’s dog tag necklace is packed with military-inspired details. Engraved dog tag includes a bullet pendant attached to a silver ball chain necklace. Army dog tag is engraved with numbers, “U.S. Army” and “Rambo.” Chain length measures approx. 27” that hangs low on the chest and can easily fit over the head without undoing the clasp. You can complement this silver dog tag necklace for men with camo apparel and army accessories.