It's a real shame that as a non-resident of Boston I can carry a 17 round magazine and as a resident you can't even own one. Why don't you guys fire "Mumbles"? He's a dick! Get active and fire that d'bag.
You failed to read what was posted above. Residents can own any pre-ban hi-cap pistol mag they want. Most can't carry anywhere, but that is another issue altogether.
It is hi-cap rifle/shotgun mags that are totally banned for residents of Boston.