As of July 20th, so called Assault Weapons are banned in Massachusetts including copycat weapons such as ARs, AKs and so on... I live in MA and I'm in the process of obtaining a LTC-A, and I was buying parts already for my upcoming AR15. I also ordered a Polymer 80 lower receiver before July 20th, is it possible for me to turn it into a firearm? I'm so frustrated right now due to the fact I wasted money on parts I can't even use... If there's no hope for me, can AR parts interchangeable with the all state friendly, ARES SCR?