NcSTAR 3X Magnifier w/Flip to Side Quick Release Mount, Black Locking quick release mount, attaches to virtually any Weaver/Picatinny/MIL-STD 1913 type rails 3x magnifier with flip to side quick release mount Magnifier centerline at 1 1/2 inch AR15 height Black anodized aluminum construction Magnifier features a quick focus ring to keep the image in focus