GAMO ND1 SUBZERO is a night-vision laser designator by Laser Genetics. Fixed-beam green laser with a 9-element optical collimator designed to transform any riflescope into a night-hunting optic. The unit operates in cold conditions down to 0°F and includes a mounting system compatible with 1" or 30mm scopes. Enables targets to be seen at night up to 100 yards and visible up to 1 mile. Includes a custom mount for quick attachment to suitable riflescopes.