You planning to do this during the 120 days "amnesty"? Or a legit SBR later?
I'm debating on doing this with an AR-9 or 300 Blackout upper. I just really don't want to though. If I do, I'll wait until the very last minute while I hope a judge smacks the ATF upside the head over this stupid rule change.
At present, there are four lawsuits regarding the arm brace rule, each taking slightly different approaches. Two were filed in Texas, where the Fifth Circuit has proven to be more pro-2A than other districts. There will be other lawsuits filed in the meantime, so it’s a pretty good bet a judge will slap the ATF with a temporary injunction to prevent their enforcement of this politically-motivated change of the rules. In the meantime, one or more of these cases will eventually work its way up to SCOTUS, where hopefully they’ll issue a ruling similar to the Cargill decision the Fifth Circuit handed down that bars the ATF from enforcing the bump stock ban in that District.