Magnification: 4X Model: Acog Reticle: Illuminated Red Chevron .223 / 5.56 Bdc Material: Aluminum Firearm Type: M16A4 Mount Type: Acog Flattop Mount Finish: Black Hardcoat Anodized Field Of View: 36.80 Ft @ 100 Yds Adjustment Size: 2 Clicks Per Inch @ 100 Yds Objective: 32Mm Eye Relief: 1.50" Length: 5.80" Includes: Ta51 Flattop Mount Optic Coating: Multi-Coated Weight: 15.10 Oz Exit Pupil Diameter: 8.13Mm