ACOG 3.5x35 scope with Red Crosshair Reticle—the ranging reticle is calibrated for 5.56 (.223 cal) flat-top rifles to 1000 meters. Includes Flat Top Adapter. Daytime illumination is provided by fiber optics and Tritium illuminates the scopes at night. The TA11-D-100557 combines the technology of the 3.5x35 Trijicon ACOG gun sight with the 3.25 MOA Trijicon RMR Type 2 red dot sight. This provides the shooter with the option of quick acquisition close range sighting with the Trijicon RMR Type 2 sight and the precision for longer range shooting with the Trijicon ACOG 3.5x35. - The TA11-D-100557 also includes: - 1 3.25 MOA Trijicon RMR Type 2 attached with mount - 1 Flattop Adapter for Military style Rail (TA51) - 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 (mm): 35 - Bullet Drop Compensator: Yes - Length (in): 8 - Weight (oz): 14.0 w/out RMR or mount - Illumination Source: Fiber Optics & Tritium - Reticle Pattern: Crosshair - Day Reticle Color: Red - Night Reticle Color: Red - Calibration: 0.223 - Bindon Aiming Concept: Yes - Eye Relief (in): 2.4 - Exit Pupil (mm): 10 - Field of View (Degrees): 5.5 - Field of View @ 100 yards (ft): 28.9 - Adjustment @ 100 yards (clicks/in): 3 - Mount: TA51 - Mount Comes With: TA51 - Housing Material: Forged Aluminum