To summarize, we conclude that the Second Amendment protects an individual right to keep and bear arms. That right existed prior to the formation of the new government under the Constitution and was premised on the private use of arms for activities such as hunting and self-defense, the latter being understood as resistance to either private lawlessness or the depredations of a tyrannical government (or a threat from abroad).

Judge Laurence Silberman
March 9, 2007 in a decision that concluded the 2nd Amendment guarantees an individual right in the case of:
SHELLY PARKER, ET AL., APPELLANTS versus DISTRICT OF COLUMBIA AND ADRIAN M. FENTY, MAYOR OF THE DISTRICT OF COLUMBIA.