Convert your Armasight nightvision monocular into a weapon sight. Simply mount the AIM system to any Picatinny or Weaver rail, then attach your monocular. A small HUD-type prism on the front of the unit projects a 65-MOA circle or 3-1/5-MOA center-aiming dot directly into the nightvision unit's lens. The collimated LED diode module is windage and elevation adjustable, and sports 11 brightness adjustments. Crafted of aluminum alloy with quick-release levers for easy and quick mounting and removal. Uses one CR-2032 battery (included).