Rail mount bracket complete with threaded mount adapter to take a standard Metz VHF antenna. The base connector of the Metz VHF antenna screws into the adapter which screws onto the rail mount bracket. The coax cable connects into the base of the antenna with a PL259 connector. A rubber O-ring fits between the antenna body and the adapter.
Rail mount bracket is for 22mm, 25mm and 32mm round or square rails. Stainless steel with nylon clamps.