The new Orca Antenna Holder is made of solid aluminum and was designed to help mount antennas, LCD screens, LED light and other accessories onto Orca Audio Bags and the ORCART (OR-48) The OR-150 Antenna Holder can be easily attached to the unique Orca Audio Bags sturdy frame. The OR-150 includes a Velcro strap for maximum safety and security and contains the following mounting options. BNC hole 1/4 inch threads 3/8 inch threads For more information about the new OR-150