So you're a lawyer and you've researched this completely or you've latched on to a snippet out of context and are misinterpreting it to favor your own prejudices.
Snopes has a nice objective write up of misinterpretations of the Dick Act (Militia Act of 1903) including yours.
Specifically, the Dick Act does not void gun control laws or address any right to bear arms.
BTW, for those who assume I'm against gun ownership, try again because I'm not. I just don't think the 2nd amendment is a slam dunk obvious argument in favor of a universal right to bear arms - any arms. Personally I believe I have an inalienable right to self defense.