Is that an aluminum handguard on the AA or is it carbon or fiberglass?
According to this review it's a "synthetic handguard."
The nice thing about the synthetic handguards is they are much warmer in the Winter. AL is such a good conductor, it sucks heat right out of your hand. I have one AR with a fiberglass HG and I like it, but it is slippery compared to a cheese grater or an A2 HG.
