Pigs will fly. SCOTUS is not friendly to the right to keep and bear arms. It prefers to leave the dirty work to lower courts (which are more than happy to do the dirty work), and simply refuse to hear the cases.
See "Heller II," where the DC circuit found bans on magazines with >10 capacity to be constitutional, and SCOTUS denied certiorari.
Are two or more circuit courts in conflict? If no, then I'm not surprised.