Snooping around tonight I checked out Yankee Hill Machine's site. They are having a sale on two types of their forends, a two piece model with rails and their "customizable" free float tubes that have removable rails of differing lengths. I have three of these and LOVE them.
Anyhow, they are on sale direct from YHM now, in stock, and $10-$25 off depending on model, if anyone's looking.
WOW, looking a little closer I found a ton of stuff they have on sale! Anyone building a "last minute" AR should check out the prices.