Unless Christensen Arms has changed there carbon wrap and there process I would steer way clear. There barrels actually insulate and trap heat in, (that's what carbon fiber does) dispite what there ads claim.
I've seen the carbon wrap on a couple of their barrels bubble up because they got so hot. [img]/ubbthreads/images/graemlins/confused.gif[/img] [img]/ubbthreads/images/graemlins/frown.gif[/img]
If you want a carbon barrel that does what they claim it will do I'd check out Advanced Barrel Systems, Inc.
They have a new process, though I have not seen any of there barrels. George at GAP thinks highly of them and has been installing them for there customer.
Best of luck!