The most important thing to take away from this decision in US v. Perez-Garcia is that this three-judge panel held, in a published opinion, that the 1987 US Supreme Court opinion (means-end testing) in US v. Salerno does not apply to Second Amendment challenges. Instead, the Court held that the Second Amendment applies to Second Amendment challenges. As a published opinion, it is binding on all subsequent three-judge panels, and all district courts in the 9th Circuit.