CRL-U.S. Aluminum offers full vision bullet resistant doors and frames for interiors and aluminum bullet resistant doors for exteriors. Full vision doors and frames have continuous geared hinges for security, and low-profile doorframes and door latches. They contain a single panel of bullet resistant acrylic or polycarbonate glazing. Aluminum bullet resistant doors and frames for exteriors have 4 5/8-inch aluminum stiles and 7 5/16-inch bottom rails. They can be used as a storefront and entrance system.