GBRS Group FTC Magnifier Mount 30mm Black. 91 FTC (Flip-to-Center) elevates any magnifier to the 2.91 height for compatibility with the GBRS Group Hydra Mounting Systems. The 2.91 FTC Mount uses a straightforward force-to-overcome mechanism and tucks the magnifier below the optical sight plane fully within the weapon's receiver footprint when not in use. This design removes the need for flip-to-side placement seen in legacy products offering all the benefits of magnification when needed with no obstruction of sight pictures when stowed. Specifications for GBRS Group FTC Magnifier Mount: Manufacturer: GBRS Group Finish: Anodized Additional Features: Mount Case Finish: Anodized Blade Finish: Anodized Handle Finish: Anodized Features of GBRS Group FTC: Height: 2.91 to Optic Center Line" Package Contents: GBRS Group FTC GBRS Group GEAR-FTC30MM-BLK: FTC Magnifier Mount 30mm Black