As far as rails go, I's like to see some way of attaching a light, maybe a 90 deg. picatinny adaptor that just goes on the top rail, out of sight, out of mind, and not looking like I'm trying to hang $2000 worth of bling off my thing. So to speak.
For those that are interested, I've put a Reflex II (12.5moa chevron with chemlight emergency backup in this version, think it's the NSN model) and it's just about perfect. The only thing I need is a way to identify targets in the dark and I don' t want to drill holes in my handguard to do it.