SmallRig Sony FX30 /FX3 XLR Handle Extension Rig MD3490 is designed to extend the length of the FX30 /FX3 XLR Handle and add more accessory mounting interfaces. The extension rig is installed at the end of the FX30 / FX3 XLR Handle by a 1/4"-20 screw, which can extend the FX30 / FX3 XLR Handle back by 30mm. It is ergonomically designed to provide users with a comfortable grip. In addition, the extension rig is also equipped with a NATO rail, which is installed on the top of the FX30/ FX3 XLR Handle by two 1/4"-20 screws. It provides more accessory installation interfaces for shooting scenes so that you can quickly install/release monitors, EVF, etc. The extension rig has Cold Shoe, multiple 1/4"-20, 3/8"-16, and ARRI 3/8"-16 accessory threads providing multiple accessory mounting interfaces for shooting. In addition, the NATO rail can be removed and the extension rig can be used separately.