The chevron reticle is designed to be zeroed using the tip at 100 meters. The width of the chevron at the base is 5.53 MOA which is 19 in. at 300 meters. This allows range estimation for silhouette targets. Features dual illumination (Fiber optics provides daylight illumination and tritium illuminates reticle at night). The ranging reticle is calibrated for 5.56(.223 cal) flattop rifles out to 800 meters. The TA31F-G also includes: 1 Flattop Mount (TA51) 1 4×32 Scopecoat (TA64) 1 LENSPEN® (TA56) 1 Lanyard Assembly for Adjuster Caps (TA71E) 1 Trijicon Logo Sticker (PR15) 1 ACOG Manual 1 Warranty Card – Magnification: 4x – Objective Size: 32mm – Bullet Drop Compensator: Yes – Length: 5.8 – Weight: 9.9oz w/out mount – Illumination Source: Fiber Optics & Tritium – Reticle – Pattern: Chevron – Day Reticle Color: Green – Night Reticle Color: Green – Calibration: 0.223 – Eye Relief: 1.5 – Exit Pupil: 8mm – Field of View: 7 Degrees – Field of View @ 100 yards: 36.8′ – Adjustment @ 100 yards (clicks/in): 2 – Mount: TA51 – Mount Comes With: TA51 – Housing Material: Forged Aluminum