ZeroTech Thrive HD Reflex Red Dot Sight offers rapid target acquisition in a lightweight, durable design. Engineered with a sharp 3 MOA red dot and 11 adjustable brightness settings, this sight is suitable for a wide range of shooting scenarios. The optic utilizes a RMR footprint and includes thoughtful accessories for optimal use and protection. 3 MOA red dot for precise targeting 11 adjustable brightness settings Includes molded rubber cover and microfiber cloth ZeroTech Thrive HD is built for reliability and versatility, featuring waterproof and shockproof construction along with long battery life for dependable use in any environment.