American Technologies Network, Corp. (ATN) developed a day/night solution compatible with riflescopes, spotting scopes or even as a hand-held unit. The PS22-3A night vision front sight mounts directly in front of a daytime scope quickly and securely without tools; making it night vision operational. With the daytime scope already zeroed, the PS22-3A requires no further zeroing and allows full use of all the features of the daytime scope. The PS22-3A has a catadioptic front lens system which combines specifically shaped mirrors and lenses allowing for very fast focal ratios and for a smaller and more lightweight lens. The PS22-3A weighs in at only 650 grams. The glass optics is multi-coated for better optical view and protection from the elements. The PS22-3A comes standard with a 7/8-inch Weaver mount and an optional adaptor that clips the PS22-3A to the front of a scope or an ARMS quick release mount is also available. The ATN PS22-3A Night Vision System is also available as a Generation 2+ in the ATN PS22-2, a Generation CGT in the ATN PS22-CGT, and a Generation HPT as the ATN PS22-HPT.