I see the issue as no different than restricting any other product protected by the Bill of Rights.
Could you imagine if a DC citizen could not purchase a newspaper in Virginia? Or, expect no due process in Virginia?
They are equally repugnant in a free society.
"How a politician stands on the Second Amendment tells you how he or she views you as an individual... as a trustworthy and productive citizen, or as part of an unruly crowd that needs to be lorded over, controlled, supervised, and taken care of."
Texas State Rep. Suzanna Gratia-Hupp