It's not a visor though.
Nor does that edit make any sense.
The thing is attached to the plating at the back and connected rather high up.
Unless the beak is actually just floating there and can be detached, it wouldn't look like in your edit.
If you pull it down from where it's attached would look like this:
With your face squished in.
Even if you rotate it with a different anchor point, you'll just get another detached beak:
And in every case, you won't be able to see through that thing.