I'll also recommend the MOE over a railed handguard for your purposes. Not that a railed handguard can't help with ergonomics, but you need to add some kind of grip to assist with that. The MOE has the ability to do so, along with a light. For $30, you can hardly go wrong.
Railed handguards can be heavy, and unless you're in the $100 range or so (I have a Midwest Industries on one carbine; it's decent, but not as light as the more expensive ones from Daniel Defense and Troy), you are dealing with excessive weight and potentially out of spec rails (nothing will fit). Also, those rails can be sharp, so you'd be looking at covers for them. There's no point to a railed handguard if you aren't mounting anything, and even if you plan to, you should consider what you plan to mount first.
With the MOE being what it is, I'm really not sure there's much point anymore to the railed handguards that aren't free floating; you just aren't gaining much.