The Armasight CO-MR (Clip On - Medium Range) is a night vision unit that mounts in front of an existing day optic and converts the day optic to a night vision system, effective up to ranges of 700 yards. The CO-MR can be mounted to or removed from a standard Picatinny rail in seconds, with no tools required. The CO-MR is recommended for use with day optics of up to 10x magnification. Because the CO-MR is mounted in front of your day optic, the hunter's eye relief is not altered, and shot release and follow through all remain intuitive. As the unit is factory bore-collimated to better than 1MOA accuracy, no alteration in zero is experienced, so it truly is as simple as mount-focus-hunt, as familiar as hunting in the daytime. This CO-MR Gen 3 Night Vision Clip-On is available with 1800+, 2200+ and 2400+ FOM Ghost White Thin-Filmed Phosphor Image Intensifier Tubes. Enjoy the unfair advantage of Armasight night vision in white phosphor while hunting. Package Contents CO-MR Gen 3 Night Vision Clip-On Lens Cap Light Suppressors Battery Adapter Watchman IR Illuminator Product Manual Lens Cloth Soft Carrying Case