From Forbes:

A flurry of such challenges began right after Heller, led to McDonald v. Chicago(2010) and are still ongoing. In an important example, in February 2014 the Ninth Circuit Court of Appeals confirmed that the Second Amendment protects an individual right to carry firearms for self-defense in public. The decision came in Peruta v. San Diego County. The majority opinion in Peruta said, “We are called upon to decide whether a responsible, law-abiding citizen has a right under the Second Amendment to carry a firearm in public for self-defense.”