A holster system including an elongated backer plate having a plurality of slots, a hinge that pivotally connects a first end of the backer plate to a first end of the cover plate, a resilient lock that releasably connects a second end of the backer plate to the second of the cover plate, an adjustable spacer located between the backer plate and cover plate, the cover plate, the hinge and resilient lock is adapted to accept a range of different sizes of belts worn by a human user and wherein the adjustable spacer may be inserted into any of the plurality of slots to accommodate the different sizes of belts and a police or military holster rotatably attached to the backing plate.