The BARSKA 4-16x50 2nd Generation Sniper Scope is 100% waterproof and fogproof and built with an extra rigid shockproof construction, the ergonomic rubber design protects the scope and offers a secure non-slip grip. The multi-coated optics deliver bright, clear, high contrast views in all types of lighting and weather conditions. Illuminated red and green mil-dot reticles make targeting easy in any type of light condition. Other features include 30mm tube construction, easy-grip target-style windage and elevation adjustments, convenient side parallax adjustment with 1/8 MOA click adjustment and a fast focus eyebell. The built-in sniper edged sun-shade is set back in the housing to allow the sun shade to cast a shadow and reduce glare for use in bright sun. This Sniper Scope is precise and easy-to-use for tactical environments. Specifications: Magnification: 4-16x Objective Lens: 50mm Waterproof: Yes Fogproof: Yes Reticle: Mil Dot IR Dual Color Exit Pupil: 3.1-12.5mm Optical Coating: Multi-Coated Field of View (ft@100yds/m@100m): 19.9/6.6@4x · 5.8/1.9@16x Eye Relief: 3.1 Inches Click Value: 1/8-Inch Adjustment Knob: Side adj. parallax, easy-grip, target-style windage and elevation Tube Diameter: 30mm Finish: Black Matte Length: 14.5 inches Included Accessories: Scope Caps, Mounting Rings, Lens Cloth and Battery Warranty: Limited Lifetime.