SCOTUS could find against inherent legality of assault weapons as a derivative of _Heller_, which upheld a prohibitive tax on certain weapons “not suitable for militia use”. Don’t underestimate the potential damage by a case strangely convenient in content and timing during the “rule” of a President seemingly having strange persuasion on the Court.
Interesting phrase “not suitable for militia use” in this case. Because AR15 and AK47 “style” firearms are the weapons of choice for militias worldwide. Under that logic, the CMP should be making them available to the citizenry and we should all become proficient in their use (”well regulated “).