You are in your house with your family and criminals start breaking down your front door.
You and your family retreat to the master bedroom closet, lock the door,
You hear the criminals break down the bedroom door.
They start pounding on the closet door, saying we're coming in to get you and your cash.
The closet door breaks apart.
At that moment, who the fuck is anyone to tell you the level of technology you can use to defend your life.
Sure, I'll give you that a sawed off shotgun would be your best choice at that moment,
but if you wanted to use a fully automatic M-16 or AK-47, who is anyone to deny you the right to the best defense you can mount?
This is the reason. Ice-T said it as well, and I parapharase, "I don't own a gun to hunt. I don't own a gun for target practice. I own a gun to protect myself from a crazed individual or government."