Yeah, but I don't want an AR platform, honestly. The SU-16 offers AR ergonomics for significantly reduced weight, which is why I was considering it, but the RDB offers a much shorter rifle and 18.5" barrel, just have to play the waiting game. ARs are great, I just don't want one :\
I would go for the RDB, new AR style SU16 defeats the purpose of the original design which was a light, compact backpacking weapon. I also question its long term reliability when used as a high volume shooter.