Optex Systems Holdings, Inc. manufactures optical sighting systems and assemblies for the Department of Defense, foreign military applications, and commercial markets. It operates through the following segments: Optex Richardson, Applied Optics Center Dallas, and Other. The Optex Richardson segment handles optical sighting systems and assemblies production. The Applied Optics Center-Dallas segment serves as the key supplier of laser coated filters used in the production of periscope assemblies. The company was founded in 1987 and is headquartered in Richardson, TX.