Fortitude regulator specs? Location?

[Blutroop]

Now that our Lego set has a few more pieces I am eager to see how I might be able to combine them. Is it adjustable? What pressure or pressure range? Is it secured like a valve, screwed in, or entrapped between the valve and gauge block? Some pictures would be nice. Man I really envy the guys on here that work on air rifles all day..

[Mikein210]

Have you had any luck getting pictures of regulator