The BXXX is a heavy duty pivot mount designed to hold multiple radios 7 7/8" wide. The base has multiple slots so that you can pivot the top bracket into a convenient position for your installation.
Mounting Brackets Sold Separately!
There are two different heights of top bracket available. The extra long DXXX bracket will allow you to tilt the radios up towards you, while the DXX bracket requires the radios to lay parallel to the base.