• Built on TRUE STRENGTHâ„¢ Platform and Completely Sealed and Nitrogen Filled for Shockproof, Fogproof, and Rainproof Performance • 30mm Tube with Best in Class Emerald Lens Coatings to Achieve Maximum Light Transmission for Best Clarity • BG4 Etched Glass Reticle, Designed to be Fast and Intuitive, Features Ballistic Drop Compensation and Rangefinder Markings Out to 600 yds with Ballistic Data Based on Common 5.56/.223 Loadings in Modern Sporting Rifles • Premium Zero Lockable and Resettable Target Turrets with Precise 1/2 MOA per Click Adjustment • Innovative EZ-TAP ® Illumination Enhancing (IE ®) System with Red/Green Dual-Color and 36 Multi-Color Mode to Accommodate All Weather/Light Conditions (US Pat. 8437079; EU Pat. EP2520894) • 1-Click Illumination Memory Feature Gets the User Right Back to the Color/Brightness Setting Last Used • TactEdge ® Angled Integral Sunshade Reduces Indirect Glare Coming Into the Lens Mitigating Lens Flare • Complete with ACCU-SYNC ® 30mm High Profile 34mm Offset Picatinny Ring Mount and Flip-up Lens Covers