Thanks Osprey. Ive been on quarterbore but still couldnt find exactly what I was looking for.

I found barrels at model one but they all seem to be carbine gas systems. Is this ok?

So I can just buy this barrel, put it on any upper and go shoot 300 fireball? Thats Awesome!

Anyone make bolt guns setup like this?

Also, I dont reload yet allthough I keep wanting to. And I figure this will make me go buy all the equipment. Im shooting enough to justify it anyway. Ive just been lazy.