ACOG 5.5x50 Red Chevron BAC Flattop.223 Reticle includes flat top adapter. 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 at 300 meters. This allows range estimation for silhouette targets.Features:- Flattop Mount (TA51)- 5.5x50 Scopecoat (TA65)- Lenspen (TA56)- Trijicon Logo Sticker (PR15)- Manual- Warranty CardSpecifications:- Magnification: 5.5x- Objective Size: 50- Bullet Drop Compensator: Yes- Length: 12- Weight: 25.6oz with Mount- Illumination Source: Fiber Optics & Tritium- Reticle Pattern: Chevron- Day Reticle Color: Red- Night Reticle Color: Center Red- Calibration: 0.223= Eye Relief: 2.2- Exit Pupil: 9.1- Field of View (Degrees): 3.5- Field of View @ 100 yards (ft): 18.4- Adjustment @ 100 yards (clicks/in): 5- Mount: TA51- Mount Comes With Flattop- Housing Material: Forged Aluminum