If we actually believe that our rights, 2A included, are "inalienable" and "god-granted," then I question whether government has any business, at any time, taking any action to restrict those rights.
If we are talking about establishing guidelines for restricting rights, then I question just how seriously we take our claim that said rights are "inalienable" and "god-granted."
While I understand that most people would find it desirable to restrict the actions of others in the interests of something called the "greater good," I maintain that that those actions are not actually "rights" if they are, in fact, able to be restricted.
Semantics aside, if we are to endorse the belief that the penal system serves as an instrument of reform, then having been a guest of said system should carry no lasting consequences or stigma.
Either way, I say no restrictions.