You can purchase it from many sellers on e-bay.
This mount can be attached by drilling it to a a wall or table top. It also comes with 3m adhesive if you want to attach it without drilling holes. Please note if you want to use the 3m to attach it, the surface needs to be flat and prepped.The mount will accept the optional belt clip for your APX Portable. Please note this offer is for the mount only. The APX belt clip is not included.
If you have the APX 6000 or APX 8000 you will need the Motorola Belt Clip PMLN5709A
If you have the APX 6000XE or APX 8000XE you will need the PMLN7902
If you have the APX 7000 you will need the PNLN5331
The face-plate comes with a padded face to protect the APX Portable.