The McDonald case mirrored the Heller decision in that the Court ruled that the 2nd Amendment only protects a right to possess a firearm in the home for lawful uses such as self-defense. It does not prevent reasonable restrictions on firearm ownership being enacted by the state or local governments. Basically neither Heller nor McDonald guarantees a right to possess any firearm, anywhere, and for any purpose.
Point is, the 2nd Amendment is basically universal. McDonald allowed the CC/State infringements to face the 2nd’s power since this is now incorporated, just like any other Fed regulation.