It is an extension of your right to "Life" and "Liberty" in that only YOU have the ability to decide how best to guarantee and protect those rights.  Notice, also, that it says "...among these rights..."  This implies that there are others, legions of them, that the founders chose not to list and, therefore, left it open to the broad range of rights that we all truly do have.   
  
  
  
I know it's against your nature to take a stand or be passionate about anything, Erik, so fuck off.  It's nice that you live in a country where you can roll your eyes at the rights that have been guaranteed you by forward thinking individuals 230 years ago.   
amen   erik blows goats  
  
Amendment II 
  
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.