Your right to own a gun is protected twice

There are those who say the second amendment does not protect your right to own a gun, but only allows the government the right to form a malitia:

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 

However, if you read the Declaration of Independence, a document that is still full and binding, it states the following:

We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.--That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, --That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness

This pretty much assumes that people know what unalienable, God-given rights are (natural rights).  These are the rights we as humans are all born with, and, among these, is the right to protect ourselves.  Yes, we all have a right to protect and defend ourselves.  We, therefore, have a right to own guns.  This is true regardless of the second amendment.