UTG's Circle Dot Sight is a crisp and vivid red/green 4MOA target dot and has a 62MOA circle with 5 brightness settings for diverse environmental backgrounds. This model has an integral quick detach base and flip-open lens caps. Features: Crisp and Vivid red/green 4 MOA target dot and 62 MOA circle with 5 brightness settings for diverse environmental background Instant aiming and locking on target with great field of view and unlimited eye relief Non-reflection high tech Emerald coatings Most versatile dot sight for wide range of pistols, shotguns and rifles Magnification of the scope is fixed Infinite parallax setting Infinite eye relief