Breaking News: ATF Is Classifying .50 Cal Bolt Action AR Uppers As FirearmThanks to a friend of mine for alerting me to an issue concerning Safety Harbor Firearms and other manufacturers of .50cal uppers received a letter from the ATF. The letter claims that bolt action .50 cal AR uppers can possibly be considered firearms. I reached to Walter Keller of Safety Harbor Firearms and he agreed to share the letter with TFB.
https://www.thefirearmblog.com/blog/201 ... s-firearm/