The Holosun EPS MRS 2 MOA Dot / 32 MOA Circle Reflex Sight is a convenient, lightweight, and reliable pistol-compatible optic, built around a streamlined 7075 T6 aluminum housing for lasting field service and a smooth, dependable draw in any tactical or personal defense environment. Compatible with the Holosun “K” footprint series, this enclosed reflex sight features an illuminated, user-friendly red/green dot reticle, designed to deliver quick target acquisition, while multiple user-selectable brightness settings deliver exceptional clarity in any lighting. Shake Awake™ technology automatically activates the red dot when it detects motion for speedy, hands-free activation when seconds matter, and automatically powers down the unit when the weapon is idle. Solar Failsafe™ technology harnesses the sun’s energy to power the unit in bright environments, conserving battery life for overcast or low-light environments. Operating on a single CR1620 battery (included), the Holosun EPS offers up to 50,000 hours of battery life (lowest setting). Plus, multilayer reflective glass lenses deflect stray light away from your eye for exceptional clarity and reduced eye fatigue.