So, if 30rd AR15 mags suddenly become illegal to own, and they overlooked the obvious, it'll take time -- and probably a few cases demonstrating the flaw in the bill -- before they can pass any changes. Their biggest issue is they don't understand the problem they are pretending to solve.
They can always amend the bills later once it's law to read "any combination of parts". Something similar is happening now with the ghost guns bill. They are changing the retro active date from Sept 2020 to none.
NOw they want to ban 50 cal guns. How much longer until 338 or other calibers? Their entire goal is to take little by little until it's the entire pie.