Flip-up design provides maximum protection from the elements while guaranteeing rapid deployment of your holographic sight. Lens cover unit mounts between the sight's body and the protective hood, ensuring that it can't be lost even during the most aggressive maneuvers. The rear lens cover opens completely and nests on top of the sight, while the front cover stops at horizontal creating a sun shade. For over a decade, GG&G has become one of the world's acknowledged leaders in the design and manufacture of civilian, military, and law enforcement optical mounting systems and tactical accessories. GG&G combines innovative designs with the highest standards of manufacturing in order to match the demanding mission requirements of its customers. All GG&G weapon accessories are finished to Mil-Spec, and de-horned for the shooter's safety. Every product carries a lifetime warranty and is proudly made in the U.S.A.