The Ultra Sight by ATN is designed to be a both eyes open heads-up rapid acquisition red dot sight. A revolutionary design lets you choose between four reticle patterns with a simple twist of a knob. A 11-position adjustment for brightness and an accurate windage make Ultra Sight one of the best red dot sight on the market. Due to the custom manufacturing required for many ATN products please allow for shipping delays.. Spec Sheet. User Guide. Export Restrictions Apply ATN products are subject to the Arms Trade Act and may not be exported.