Question: What qualifies as an "infringement" of the right to arms?

[M14 Shooter]

Apparently, anti-gun loons believe there are -no- inherent limits to the right to arms.

 

[danielpalos]

This question is meant specifically for the anti-gun loons who want to further restrict the right to keep and bear arms for law-abiding citizens.

2nd Amendment:
A well regulated militia, being necessary to the security of a free state, the right of the people to keep and bear arms, shall not be infringed.

In your book, what sort of gun control violates the 2nd?
That is, what sort of restrictions on the right to arms violate the constitution?

Please be sure to explain your response.

The "police power" of a State or the Union for the domestic Tranquility and security needs of our free States.