Red dot and reflex sights allow shooters to precisely engage targets very quickly, but with their fixed 1x magnification, longer range engagements can be a bit more difficult. That's where the Meprolight MMX3 magnifier comes into play. This magnifier attaches directly behind your reflex sight and allows you to instantly add 3x magnification to your optic system! Elevation and windage adjustment dials allow the user to precisely dial in the line of sight, and a wide field of view provides rapid target acquisition with both eyes open. The MMX3 attaches to any standard Picatinny rail and includes a quick-flip adapter which lets you flip the sight up and into place when you need magnification and flip it off to the side when magnification is no longer needed. A riser is included for optics that have a taller height over bore, and each magnifier also includes two protective rubber covers to help keep your investment safe from bumps and scrapes.