Nothing going on at all.
I have an SBR, and I love the way it looks with the carry handle and regular handguards. But I want to be able to put a VFG on it. I've seen the M33 handguards new for about $70. If I'm going to spend that much, I may as well spend a little more and get a YHM railed handguard. That's not the look I'm after.
I guess it's hard for me to believe that someone has a set of these M33 handguards and actually uses the top rail for something. It's unsuitable for optics and if you mount a light on it, the FSB is in the way. Soooooo, I figured someone might want to sell half of a set. Never hurts to put a feeler out there.
I still may go a with UFIR, not sure yet.
There's a show here this weekend so I'll be looking.