> Where is the right to have semi automatic rifles? Specifically the 2a doesn't specify which arms one could reasonably argue there can be restrictions.

The part that says: the right of the people to keep and bear Arms, shall not be infringed.

A law saying you cannot have a semi-auto would clearly be infringing on that right.

> Unless you're the national guard but I know you guys like to ignore the whole milita bit

The line referencing the militia does not say that you must be a member of a militia. It's an example of one reason why the right has been enumerated.

It'd be like a line saying, "*A well educated populace being necessary to the industrial base, the rights of the people to attend public school..." being just one example of why education should be provided to children. It doesn't mean that working in a factory would be the only reason you would have a right to an education.