This is not legal advice. Just my take based on 27 years as a 01, 07, 03 FFL. I have the 07 FFL and tax stamp now. I have a location in an industrial zone. This satisfies Mass. as to the state dealer license. With the 07 FFL you get dealer priviledges. You can do or make whatever you want or not. YOU DO NOT GET THE FFL JUST TO ENHANCE A PERSONAL COLLECTION, ESPECIALLY NFA ITEMS WHERE YOU AVOID THE TRANSFER TAXES. This is tax evasion. Big penalties. Again, the only way to go into this is to first become very familiar with all the laws, rules and regulations. Advice and speculation can cost you big time. Unless you want to commit to full compliance on all fronts, this is not a great idea. Jack