So if I bring a link from my M60 into Mass, I’m a criminal? That’s sort of unlimited as to capacity. Or do I need to bring in 11 links?
No, no. They define it that way. They don't restrict carry or usage. As a Class A LTC holder, I have no restrictions on firearm or capacity that I am permitted to carry concealed. A Class B LTC holder has restrictions that keep them from lawfully carrying over 10 round capacity feeding devices.
Not sure how MA law interacts with other states laws. I think they are fairly hostile to other states permits. But...why the hell would you want to come to this shiite hole anyway?