The ROMEO4H is designed for modern semi-automatic pistols, MSR platforms and shotguns. Comes standard with solid and see-through lens covers and quick release mount, Ballistic Circle-Dot and Ballistic Circle QuadPlex reticle options. Users can select from 4 different integrated reticle options (Dot, Circle-Dot, Dot with Holds, Circle-Dot with Holds)50,000+ hour battery life and the 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 IPX-7 rated.