Ade Advanced Optics BE4X30ME Premium Illuminated Infrared Electro Sight Scope, 4x 30mm 4X magnification, 30-millimeter objective lens, 24.1-foot field of view at 100 yards, 7.4-millimeter exit pupil, and 3.9-inch eye relief Multi-rail Electro Sight scope mounts with standard 0.875-inch Picatinny rails, allowing you to customize with additional aiming accessories Includes limited one-year manufacturer's warranty Scope cover and battery included, fully coated optics with dual color infrared multi brightness settings mil-dot reticle Seven-inch length and 16-ounce weight; adjustment knobs for windage, elevation, and rheostat;