Built on True Strength Platform, Completely Sealed and Nitrogen Filled, Shockproof, Fogproof and Rainproof. Premium Finger Adjustable Target Turrets with the Most Consistent and Precise 1/4 MOA per Click Windage/Elevation Adjustment. Sapphire Coated Lenses to Achieve Maximum Light Transmission for the Best Clarity. Mil-dot Range Estimating Reticle for the Most Optimal Aiming and Shooting Performance. Parallax Adjustable from 5 Yards Close Range to Infinity. Complete with Max Strength Picatinny/Weaver Rings and High Quality Flip-open Lens Caps.