The Second Amendment extends to all bearable arms, including those that were not in existence at the time of the founding. Decided March 21, 2016. Applied: the Second Amendment → go there Topic: Second Amendment rights. Caetano v. Massachusetts, 577 U.S. 411 (2016), was a case in which the Supreme Court of the United States unanimously vacated a Massachusetts conviction of a woman who carried a stun gun for self-defense. Wiki link