The Aimpoint 3XMag magnifying module is specially designed for compatibility with Aimpoint sights and for maximum flexibility and better performance in the field. The Aimpoint 3XMag magnifying module is a high-quality optic that can be used with any Aimpoint sight for extended range target identification and engagement. This high-quality accessory gives the shooter the best of both worlds: rapid CQB aiming with an Aimpoint sight, and long range target acquisition in combination with the magnifier. The Aimpoint TwistMount allows this transition to occur effortlessly and in just a matter of seconds. The recommended mount for the 3XMag is the Aimpoint TwistMount, which allows for quick attachment on any MIL-Std 1913 Picatinny Rail. Check if you need a spacer for co-witnessing with the Aimpoint sight. The 3XMag can also be attached to aftermarket “flip to side” mounts.