The Element Optics ETX Red Dot is a compact, feature-rich reflex sight built on the popular RMR footprint for maximum compatibility across pistols, shotguns, and carbines. The large window and parallax-free 6 MOA dot deliver fast, precise target acquisition, while Auto-Brightness and Shake-Awake technology ensure the sight is always ready when you need it. With 10 illumination settings (including 2 night vision compatible), top-mounted CR1632 battery access, shockproof and weather resistant construction, and an included Picatinny adapter, the ETX is a versatile, always-reliable aiming solution backed by Element Optics' lifetime warranty. Element Optics ETX Red dot 6MOA RMR Footprint 1.83oz Shake-Awake Large Window Auto-Brightness Shockproof Weather Resistant w/ Picatinny Adapter 50111