The case consists of:

Metal Housing

Two Plastic Endcaps mounted to metal brackets

Faceplate (Transparent w/Printed Graphic attached with adhesive)

There are four screws concealed by the faceplate, two for each of the endcaps. If you need to adjust the endocaps without fouling the faceplate adhesive, it is possible to turn the screws from the threaded end with pliers- the will likely destroy the threads so you can choose your method carefully.

The endcaps are each secured by two mounting screws, two clips that are pinched by the case and the metal bracket and two longer back plate screws that also pinch against the metal bracket.

The second picture shows the gap under the metal bracket after an endcap is removed.

It is possible, and perhaps even easy, to pull the faceplate up, but I only lifted a small corner with a spudger.