When a caller asks Guy why he would ‘need’ an AR-15, Guy immediately explains that the Bill of Rights is not the Bill of Needs, that there is nothing in the Constitution requiring a need to exercise one’s Constitutional rights. The Supreme Court of the United States in DC vs Heller says that firearms that are ‘commonly used’ for legal purposes are protected under the 2nd Amendment. The AR-15 is the most commonly owned firearm in America and falls under that protection.