Did you try ZRTS?I'm awaiting replies from Centurion, BCI, Spikes, Aero, New Frontier and Palmetto regarding to the lowers. Pretty sure BCI is gone, but I'll keep looking. Mag tactical is gone too. Damage Industries doesn't do custom work. If anyone has other thoughts - especially Indiana manufacturers - please let me know.
I was thinking of approaching some higher end manufacturers too, but the lowers would probably be out of a standard price range.