Originally Posted by Bren
It also doesn't say which arms you have a right to bear or how many or how big the magazine can be or when and where you can bear them. That is all left to court interpretation. Every right in the bill of rights is subject to government discretion - each one has a library full of law defining what the government can and cannot do, except for the 2nd Amendment, which doesn't have enough law to fill a smll notebook.
In United States v Miller in 1939, the Supreme Court ruled that the 2nd amendment only protected military style weapons commonly used in the military and militia at that time.