The Trijicon MRO 1/3 Co-Witness Quick Release mount features a Mil-Spec drop test rated 7075-T6 aluminum design, with a easy to use one handed tool less mountingReturn to Zero features in a low weight, low profile design which works with any Picatinny rail.This means that the MRO is mounted higher than the iron sights resulting in a clearer field of view. The iron sights remain visible in the lower 1/3 of your optical window for use as a backup.#html-body [data-pb-style="62DF82897EA00"]{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="62DF82897EA0D"]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}