The Trijicon AccuPoint features advanced fiber optics and several intelligent features that makes this scope the right choice for all light conditions and even the harshest environments. It operate battery freeeliminating the potential for failure during critical moments in the field. Trijicons Manual Brightness Adjustment Override allows you to control the light output of the fiberoptics during daylight. Included is an advanced elements like multilayer coated lenses for superior light transmission with no distortion quickfocus eyepiece longeye relief and precise windage and elevation adjustments. The AccuPoints aircraftquality hardanodized aluminum construction protects it from the toughest elements and it is nitrogenfilled to prevent corrosion and eliminate fogging. A solid blackmatte finish eliminates glare and light reflection which could spook game. Its water resistant so the AccuPoint is able to handle even the most challenging hunting conditions.