I've got rifle length handguards on my 18" cmmg heavy barrel ar-15 and it is kinda front heavy. They're just the stock a2 handguards that came with the upper. Could I go with any other handguards to save weight or should I just deal with it? A free float is something I would be interested in. Quad rails don't really appeal to me but any advantage over the standard handguard weight is what I'm after. Does anyone know of lighter handguards?