Optex Systems Holdings manufactures optical sighting systems, periscope assemblies, laser filters, and related optical components for the U.S. Department of Defense, foreign militaries, and commercial markets, with products installed on military vehicles including Abrams, Bradley, and Stryker platforms. The company operates through two segments—Optex Richardson and Applied Optics Center—serving U.S. government agencies, major U.S. defense contractors, foreign military contractors, and commercial customers through build-to-order manufacturing under fixed-price contracts. Revenue is generated primarily from domestic military and defense customers on contracts with specified unit prices and delivery dates, with payment received within 30 to 60 days of delivery.