Abstract: A weight efficient spaced armor system that utilizes three-sided armor elements also includes a method of adaptive concealment to provide a reduced detection signature for combat vehicles, ships, or other military structures. The tri-bar elements are rotated to three positions, each of the three positions exposing a different outer surface so that three different signature management treatments can be exposed. The structure of the tri-bar elements provides an inherent standoff from the hull, thereby increasing the armor effectiveness.