Trijicon ACOG 4x 32mm Rifle Scope - Chevron - 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. Always On, Always Ready Rugged, Reliable Housing Both-Eyes-Open Design Outstanding Clarity Exact Target Distances and Holds Combat Proven Shock-Resistant Waterproof Illumination Source - Fiber Optics & Tritium Field of View - 36.8ft. @ 100yds Includes Thumbscrew Flattop Adapter 4x32 Scopecoat LENSPEN Lanyard Assembly or Adjuster Caps Logo Sticker Manual & Warranty Card