EDIT: Everything is OOS now.
I really didn't WANT to spend that ~$350, but seeing as I think everything plastic is about to become unobtainium...
Just a reminder for those who scored handguards - the directions from Aridus is that 1) install your M-LOK devices *before* installing the handguard, and 2) file down the excess threading on the screws once you've fully secured your items to the guard.