The most demanding situations -and the most demanding shooters- call for the Leupold Mark AR MOD 1. This new tactical optic squeezes every millimeter of accuracy potential from your MSR/AR or bolt-action rifle, lighting the way to success with optional daylight-visible green FireDot illumination. MARK AR® MOD 1 P5 Dial Multicoat 4 2nd generation Argon-Krypton waterproofing Tactile power selector One inch maintube