TRUGLO TRU-TEC 30mm Tactical Red Dot Sight 30mm multi-coated objective lens for WIDE FIELD OF VIEW and enhanced clarity and contrast; 2-MOA red-dot reticle for PRECISION AIMING LIGHTWEIGHT AND ULTRA-DURABLE CNC-machined aircraft-grade aluminum design; Shock-resistant, water-resistant, and fog-proof Digital push-button controls with 12 BRIGHTNESS SETTINGS; Programmable auto-off feature for battery saving; INCLUDES ONE CR123A BATTERY QUICK DETACH LEVER for easy mounting to standard Picatinny or weaver-style rails; INCLUDED FLIP-UP LENS CAPS; Integrated wire lanyard system prevents loss of screw-down windage and elevation caps Next-generation, HIGH-EFFICIENCY GREEN OR RED LASER is independently adjustable for windage and elevation