1.The FTC Magnifier Mount is built from 6063 Aluminum and Type III Hardcoat Anodized Black
2.This mount hangs the magnifier upside down so as to not impinge the adjustment knobs on the host weapon's receiver. The upside down position of the magnifier does not impact the function or performance of the unit
3.The revolutionary FTC function completely solves the problem posed by legacy flip-to-side magnifier mounts (when disengaged, the magnifier hangs off the side of the gun, creating a major snag hazard)
4.FTC Magnifier Mounts feature the first ever Flip-To-Center (FTC) mechanism, providing stowage completely within the footprint of the weapon's receiver while not occluding the host optic's sight picture at all.
5. The height of the center of the bracket is 2.26 inches: choose according to the actual need when shopping
6.If you encounter any problems during the purchase process, you are welcome to contact customer service directly to solve the problem