The Primary Arms SLx Flip-To-Side Magnifier Mount is designed to place magnifiers at 1.41 inches above the top of the picatinny rail. Additionally it includes spacers allowing for a 1.535″ and 1.64″ centerline height so you can easily line it up with your optic. It features a low profile design manufactured from 6061-T6 aluminum with two steel alloy crossbolts that apply up to 55 in-lbs or torque to ensure a rock solid mount. This magnifier mount also utilizes a direct bolt system to interface with the magnifier instead of a traditional ring design in order to save weight increase strength and eliminates the possibility of the magnifier slipping or twisting in the mount.