Just got this beauty a couple of days ago at a local retailer, and I'm happy with it (so far). It's got a propane/GG mag included out of the box, and I have a CO2 mag already on pre-order. It's mostly metal --- Metal internals, upper receiver, flash hider, and rails --- with a polymer, fiberglass reinforced lower receiver, grip, and stock.
First and foremost, I'm a little concerned about the quality of the plastic. I've read that it's "Near military quality," and it's existance is only because it's trying to emulate an actual FNH SCAR which includes a plastic lower receiver, grip and stock.
But still. It's not metal, it's on my mind.
Secondly, I'd really like to find a relatively easy way to bump the FPS down. On CO2, that thing shoots in excess of 450. I don't really want to be shooting at flesh and blood with that... But I don't want it reduced too much. I'll probably have a CO2 mag as well as a Propane mag during scrims, and it fires around 350 on GG.
Any help provided would be fantastic... And this is my first post. Please go easy on the n00b :P
Pics related, it's mine.