"We call upon ATF to conduct a prompt review and evaluation of aftermarket trigger activation devices such as bump stocks to determine whether they are lawful to install and use on a firearm under the National Firearms Act of 1934 (NFA), or whether, if they have no function or purpose other than to convert a conventional firearm into an automatic firearm, they are regulated items under the NFA,"
https://www.google.com/amp/s/patch....own-based-nssf-calls-atf-review-bump-stocks-0
https://www.google.com/amp/s/patch....own-based-nssf-calls-atf-review-bump-stocks-0