Disc Extreme APG Camo Question?

[howa]

I bought a new Knight Disc Extreme "Full APG Camo" last year, everything is camo'd, stock and barrel. Question, what is the barrel made out of, under the camo I mean, and the inside, it doesn't look bright enough to be stainless, but it's certainly looks lighter than a "blued" barrel. The manual doesn't say what it is, that I've found. Anybody know?

 

[Critter]

It's blued, you'll find that out once you shoot it some and the camo peels off all the way around the muzzle. I'm not real happy about that but I'm not sure that the cure is.