Unfortunately if they could sue the atf its the tax payers thatll pay as always. Be nice if the could garnish the people who said they're now illegal salaryIt probably isn't easy to sue the feds for damages, but most of the brace people initially had ATF position letters stating that their product was legal. I know I had a copy that came with my Sig Brace back years and years ago. I would think that would make a pretty good prima facie case.