Eagle Arms have banned the sale of 80% receivers at their shows (Gettysburg, Morgantown, etc.). I didn't know if anyone else saw this or not.
https://www.pennlive.com/news/2021/03/ghost-guns-banned-by-pas-largest-gun-show-promoter.html
https://www.pennlive.com/news/2021/03/ghost-guns-banned-by-pas-largest-gun-show-promoter.html