The Holosun AEMS CORE X2 Green offers compact performance with serious clarity and responsiveness. Designed for shooters who demand reliability and efficiency, it features Shake Awake tech and an enhanced optical system. This is a rugged, no-frills optic that punches way above its size. 2 MOA green dot reticle Advanced optical system reduces parallax by 50% Shake Awake with last setting recall 10 daylight and 2 night vision settings Up to 50,000 hour battery life Multilayer reflective glass 7075-T6 aluminum housing with MAO finish Lower 1/3 co-witness mount included