The FT Bull's-eye Micro Optic Pistol Sight is a revolutionary design that eliminates the need for the front sight. Based on an optical illumination patent, the MEPRO FT Bull's-eye is an extremely small, low profile, optical pistol sight. Similar to reflex sights, using the MEPRO FT Bull's-eye provides the shooter with an aim point in the form of an illuminated dot and circle Bull's-eye. Shooters can enjoy intuitive and fast target acquisition. The Fiber-optic Tritium combination enables instant and accurate shooting in all lighting conditions with no batteries needed. The Fiber-optic used in bright light or day shooting, and the premium-grade Tritium provides instant illumination at night or in low-light conditions. Designed to fit pistol models.