Anybody seen this?
https://www.mass.gov/info-details/mass-general-laws-c140-ss-131m
Sorry if it's been posted already, but a lot of this law is (according to this) not going into effect until April 2026, including the new restrictions on large capacity feeding devices and prohibitions on assault-style firearms. Keep in mind the new restriction is on "assault-style firearms," whereas the old restriction--in place until April 2026, according to the above--applies to "assault weapons." So, if this is correct, the changes in definitions might take place in October of this year, but the new prohibitions on possession of them don't take place until nearly two years from now.
Disclaimer: I haven't had time to dig into this, it's very much a shoot-from-the-hip analysis (Dear Lord, forgive me that one) and this is an
unofficial version of M.G.L.