This is the first Ar that I have owned. It's 20" OlyArms K3B-A3.
I have been doing some research on handguards because I want one with rails (for M6, vertical grip, etc.) I decided against the free float handguards because I don't want to go through the work that is required.
So far I really like the Midwest Industries handguards, they seem reasonably priced and I like the markings so that you can place accessories right back where you had them easily. I also like the ones that extend past the front sight, but I don't know how much that would offset teh balance of the rilfe.
I have also found the ones from Fobus, First Samco, YHM, and a few that were being sold without names.
Before I get flamed, razzed, etc. I did do a search, but nothing useful to "Me" came up when I typed in handguards, or the above manufacturers.