Since this is case is going to be heard by SCOTUS this article could be useful for Legal. Had Missouri done a better job on the legislation there'd be less uncertainty, but now questions like nullification, SCOTUS's potential to rule against Missouri in whole or part, if in part does that alter the Missouri SAPA automatically (skeptical) or simply leave SAPA without a framework?
www.vox.com
Missouri’s Second Amendment Preservation Act (SAPA) is one of the most incompetently drafted statutes to reach the Supreme Court in a long time. It is written as though the state legislature were trying to goad federal courts into striking it down — something such a court did, in fact, do last March.
And yet, if you stare at the law long enough, it is possible to find individual provisions that may actually be constitutional.