Firefield carbon fiber handguard, anyone used it?

[phishfood]

I was pleasantly surprised by how well the handguard handled the heat. It didn't seem to flex and give a lot more hot than it did cold. I could push it and make contact with the bottom of the gas block, but I had to try.

It did absorb heat pretty quickly, a few times I had trouble holding onto it with bare hands during long strings of fire.