Armasight NSCCOLR001G9DA1 CO-LR Night Vision Riflescope Clip-On Black 1x108mm Gen 3The Armasight CO LR (Clip On Long Range) is a night vision unit that mounts in front of an existing day scope and converts the day scope to a night vision scope, 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 scopes of up to 10x magnification. Because the CO LR is mounted in front of your day scope, the shooters