Designed for sporting rifle and carbine applications, the Holosun® HE403C-GR Green Dot Sight is a feature-rich platform, favored by competition shooters, casual plinkers, target shooters, and law enforcement professionals alike. Equipped with an ultradurable 6061 T6 aluminum housing, this parallax-free Holosun optic offers lasting performance in demanding environments. Powered by a Holosun Super LED bulb, the 2 MOA illuminated green dot reticle delivers quick, intuitive target acquisition, while 12 user-selectable brightness settings (10 daylight; 2 night vision) ensure optimal visibility in any lighting. Shake Awake™ technology automatically activates the reticle when it detects motion for instant, hands-free activation, and automatically powers down the unit when the weapon is idle, and Solar Failsafe™ technology harnesses the sun’s energy to power the unit in daylight environments, conserving precious battery life for overcast or low-light conditions. Multilayer reflective glass lenses deflect stray light away from your eye for exceptional clarity and reduced eye fatigue. Better yet, the HE403C delivers an impressive 50,000-hour battery life on a single CR1632 battery (included). IP67 waterproof.