Kevin
The dimensions on the outside of the shield are as follows- I used a cm/inch tape for you. See pic #5 for the better explanation. These are all on the center axis of the dome because the shield has angles that are hard to explain.(measured to the steel edge not the weld) Might be a bit loose with the exact sizes but only by an 8th inch/ a few mm or so.
From the bottom up 3 inches
From the front angle back 3 inches
from the sight cover/ shield down 1 inch
From the back forward 4 inches
On the inside the dome hole is 7 inches/ 8 on the outside with welding visible
The dome stands out 1 inch
The distance from the edge of the traverse wheel is 2 inches (very tight on the hands)
The traverse wheel is 7 inches across.
Also a finer point, possibly a standard or just a quirk with this gun the side of the breach is painted in a very abrasive non slip paint which takes the skin off your knuckles very quickly while turning the wheel. If you are not careful it can be quite painful.
As I say it seems a weird sort of thing to do... Anyone chime in on why this would be like that?
Hope this helps.