The Armasight CO-LR (Clip On - Long 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 1000 yards. The CO-LR can be mounted to or removed from a standard Picatinny rail in seconds, with no tools required. The CO-LR is recommended for use with day optics of up to 10x magnification. This Gen 3 CO-LR is available with 1800+, 2200+ and 2400+ FOM Ghost White Thin-Filmed Phosphor Image Intensifier Tubes, the preferred choice of elite special operators across the globe. Because the CO-LR 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. Easily enhance the functionality of your existing optics with the powerful Armasight CO-LR. Package Contents CO-LR Night Vision Clip-On System Lens Cap Light Supressors Watchman IR Illuminator Quick Detach Weaver Mount Battery Key Product Manual Lens Cloth Soft Carrying Case CR123A battery 3 year limited warranty with registration