Furthermore the pressure on the government to finally enact specific gun control laws increases so it's not the question IF just when and, basically, nobody actually needs an AK47 or something like that to defend oneself not even in rural areas where a grizzly might knock at your door. ...and since the government has an interesting way to define or interpret things at times, they might also just ban the right to keep and bear (certain) guns OUTSIDE. Second Amendment does not mention anything about it - it's all just a matter of interpretation. It also states "A well regulated Militia..." which will for sure be interpreted as an "Army composed of ordinary citizens organized and commanded
by the government", i.e. people forming a militia for fighting against the government is a crime.
Also, fighting against well-trained forces is something different than some shooting range at the weekend and I also wouldn't rely on soldiers refusing to fight against their own countrymen since they usually just toe the line and do not dare to refuse to follow orders for fear of reprisals/punishment and once the government can monitor everything and thus you no longer will be able to organize riots throughout the country 'cos the government will know and pursues/arrests those, which makes the whole thing less effective or even completely ineffective, it's kind of easy for the government to sell peoples and its own actions the "right" way and put down a rebellion and what was once implemented with the intention to be able to respond to the "unusual threat of terrorism" and to protect its citizens from further terror attacks can then conveniently be used to keep its own citizen in check.