ACOG 3.5×35 scope with Red Crosshair Reticle—the ranging reticle is calibrated for 7.62mm (.308 cal) flat-top rifles to 1200 meters. Includes Flat Top Adapter. Daytime illumination is provided by fiber optics and Tritium illuminates the scopes at night. The TA11J308 also includes: 1 Flattop Adapter for Military Style Rail (TA51) 1 3.5×35 Scopecoat (TA63) 1 LENSPEN® (TA56). 1 Lanyard Assembly for Adjuster Caps (TA71E) 1 Trijicon Logo Sticker (PR15) 1 ACOG BAC Manual. 1 Warranty Card – Magnification: 3.5x – Objective Size: 35mm – Bullet Drop Compensator: Yes – Length: 8 – Weight: 14 oz w/out mount – Illumination Source: Fiber Optics & Tritium – Reticle Pattern: Crosshair – Day Reticle Color: Red – Night Reticle Color: Red – Calibration: 0.308 – Bindon Aiming Concept: Yes – Eye Relief: 2.4 – Exit Pupil: 10mm – Field of View: 5.5 degrees – Field of View @ 100 yards: 28.9′ – Adjustment @ 100 yards (clicks/in): 3 – Mount: TA51 – Mount Comes With: TA51 – Housing Material: Forged Aluminum