Ade Advanced Optics Red Dot Reflex Optic Sight Reflex sight with Digital single button adjustment switch for multi brightness and on/off four position Red and reticles Aperture33mm -length82 mm -weight283g -field of view 15.8mat100m -rail: Picatinny Includes; optic, battery, lens cloth, hex wrench Comes with locking screws for your sighting adjustments Fits most Standard Picatinny rail systems