Designed for modern semi-automatic pistols, MSR platforms and shotguns; Comes standard with solid and see-through lens covers and quick release mount; 50,000+ hour battery life and the readily available CR2032 battery is side loading for quick battery replacement; Unlimited eye relief to acquire aiming point and target, regardless of eye position behind sight; MOTAC (Motion Activated Illumination) powers up or down when sensing motion; Uses an ultra-efficient red LED illumination for daylight visibility and extended runtime; True co-witness QR mount and low mount included; Strong, lightweight aircraft-grade CNC aluminum housing; Waterproof, IPX-7 rated, and fog-proof; Ballistic Circle Plex Reticle