Mechanisms are already in place to restrict our 2nd Amendment rights. To legally purchase a gun now requires a simple background check and approval by the ATF (Bureau of Alcohol, Tobacco and Firearms). All King Obama needs to do is to instruct the ATF to make no more approvals. No legislative action required at all. This wouldn't stop all gun sales but would certainly stop a huge majority of them. Next will come a monstrous tax on ammunition, likely through Obamacare using the silly idea that ammunition when it is fired hurts people and therefore the healthcare system must bear the cost. Obama has shown more than once he doesn't require Congress to achieve his aims.