The Holosun AEMS CORE X2 Red delivers advanced optics in a compact footprint, built for fast target acquisition and rugged use. With smart Shake Awake tech and long battery life, it's always ready when you are. Ideal for shooters who demand clarity, speed, and reliability. 2 MOA red 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