We covered this a few times, but it may not be searchable any more.
The AG threatened legal action against a dozen or so mail order companies. Made them sign cease and desist orders (i.e. legal document where seller agrees NEVER to sell in MA again). Ammoman was one of those burnt and he won't discuss it (there may have been a "gag order" as part of the cease and desist order) and won't ship anything into MA. Most dealers heard about what happened and also refused to sell in MA now.
Until and unless we get a pro-RKBA AG (don't hold your breath) in MA, these orders will stand and we will not be able to order anything from most dealers outside MA.
Currently the line-up of Dems planning on running for AG are all a lot worse than Reilly!! The only possible ray of hope in a recent news article is a friend of mine who was mentioned as "unlikely to run". I had a long talk with him last Saturday, offering my support if he decided to run AND would agree to work with us on this travesty the AG perpetuated. Unfortunately, he told me that he's very unlikely to run as he feels he can do more good things in the job he currently has.