I don't get where the conservative argument is coming from. Nowhere in the Constitution does it say that you can own guns. It says you have the right to bear arms. Now, that's a little bit ironic because generally speaking you would use a gun to kill a bear and then take the arms once it is dead. So from that perspective, I can understand why you'd think you need guns to acquire the bear arms. But honestly, you could just buy bear arms somewhere else without having to hunt, and that's safer for everybody.
Furthermore, I'm sure bear arms had a purpose back in the pioneer days (scaring off mountain lions and such) but why do you need them in this day and age?