ACOG 3.5x35 scope with Red Crosshair Reticle-the ranging reticle is calibrated for 7.62mm (.308 cal) flat-top rifles to 1200 meters. Includes Flat Top Adapter. Daytime illumination is provided by fiber optics and Tritium illuminates the scopes at night.#html-body [data-pb-style="62DF82898A494"]{justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;}#html-body [data-pb-style="62DF82898A4A1"]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}