When you want the very best, without compromise, without fail, without second guessing, go with a Trijicon AccuPoint riflescope. Designed with battery-free illumination that's always on, the AccuPoint is as technologically sophisticated as it is tough. The battery free "always-on" illuminated reticle keeps you on target in all light conditions. Crisp, precise, windage/elevation adjusters require no tools and the capped zero stop adjusters ensure no accidental shift. The Ruggedized design is engineered to withstand extreme conditions and tested to military standards and protocols.Features Battery-free illumination Advanced fiber-optics and tritium aiming-point illumination speeds target acquisition and extends available shooting hours Dual-illumination system automatically adjusts aiming-point brightness to existing lighting conditions Manual brightness override allows shooters to easily adjust the reticle to suit their preferences 30mm tube offers a greater range of mounting options Rugged, aircraft-quality, hard-anodized aluminum body offers all-weather protection Generous eye relief for use with higher caliber rifles Easy-to-use capped turret controls for precise and tool-free windage and elevation adjustment Side parallax adjuster for enhanced accuracy at long range Edge-to-Edge Clarity