The Leupold Mark AR MOD-1 rifle scope is a precision tool that will help shooters and hunters squeeze every millimeter of accuracy out of their AR style rifle. The MOD-1 Mark AR features the CDS elevation turret with 1/10 Mil adjustments and is calibrated for 450 Bushmaster 250 grain projectiles at a velocity of 2200fps. The rugged one inch main tube is purged with a proprietary Argon/Krypton blend for superior protection against the elements. The Multicoat4 lens coating reduces glare from lenses improving image clarity by funneling more available light to the shooters eye. With the Multicoat4 system hunters and shooters will be able to make the most of fading light.