100% Original BSA Tactical 4-16x44 ST Adjustable Optic Scope Sight 11mm/20mm with Battery

Features:1.Tactical First Focal Plane 4-16x44 stands at the intersection of precision and value, delivering an impressive array of features and performance. 2.Extra-low dispersion glass and fully multi-coated lenses transmit a crisp, bright sight picture. The first focal plane, glass-etched reticle keep subtensions accurate throughout the 4x zoom range. 3.The precision-glide erector system uses premium components in the zoom lens to ensure smooth magnification changes under the harshest conditions. 4.Exposed tactical turrets and a side parallax knob give shooters the tools needed for long distance precision shooting. The fast focus eyepiece allows quick and easy reticle focusing. 5.The single piece 25mm tube is shockproof, ruggedly built to withstand recoil and impacts. Strong o-ring seals and nitrogen purging waterproof and fogproof performance. Parameters:Magnification: 4-16x44 Objective diameter: 44mm Lateral parallax adjustment 15 to infinity Reticule: Red / Green illuminated reticule Tube diameter 25.4mm Material: Aluminum alloy Length: 335mm Weight: 600g Field of View (FOV) 100yds! 30-7.3Ft Battery: CR2032 3v battery Completely sealed and nitrogen filled, shockproof, waterproof and foggy