UTG 3-12X40 AO 1" RGB Lighted Mil-dot Scope with QD Rings Precise, range estimating illuminated riflescope from UTG is built on True Strength Platform for maximum durability; completely sealed and nitrogen-filled for shock-, fog-, and rain-proof use Emerald-coated lenses achieve optimal light transmission and clarity; mil-dot range estimating reticle assists in long-range shooting accuracy 3 to 12X magnification; one-inch tube diameter and 40-millimeter objective diameter; 34-foot field of view at 100 yards at 3X magnification and 8.5-foot field of view at 100 yards at 12X magnification 3.3- to 3-millimeter eye relief and 13.1- to 3.3-millimeter exit pupil; 331-millimeter total length and 18.5-ounce weight; five yards to infinite parallax setting; mounting accessories and flip-open lens cap included Includes limited lifetime manufacturer's warranty