The Trijicon 42mm Reflex 6.5 MOA Dot Reticle w/ TA51 Flattop Mount offers shooters the perfect combination of speed and precision under virtually any lighting conditions. Trijicon’s technologically advanced Reflex sights offer shooters the perfect combination of speed and precision under virtually any lighting conditions. The Trijicon advantage includes a bright aiming point in low light, no or bright light, quick target acquisition and pinpoint accuracy, big sight picture and realistic color, built to be tough, and designed for both-eyes-open shooting. The Reflex also includes: 1 Flattop Mounting Adapter (TA51); 1 LENSPEN (TA56); 1 Trijicon Logo Sticker (PR15); 1 Reflex Manual; 1 Warranty Card. Magnification 1x; Objective Size 42; Bullet Drop Compensator No; Length (In) 4.9; Weight (oz) 8.2 w/out mount; Illumination Source Fiber Optics & Tritium Reticle Pattern 6.5 MOA Dot; Day Reticle Color Amber; Night Reticle Color Amber; Adjustment @ 100 yards (clicks/in) 1; Mount TA51; Mount Comes With Flattop Mounting Adapter; Housing Material Cast A356-T6 Aluminum.