You have to renew now but they can jerk you around as much as they like. Fix that, let them talk about how "we background check every five years and every time they buy a gun!" because it's a PR win for them that actually improves on the mess now (ambiguities about receipts, or not, submit your renewal, but wait who knows how long to probably get it) for us.
We have an AWB now. 4420 was worse, by far than even Maura's 2016 tantrum. Negotiate one that's only law, not temper tantrum inventions, Avoid some of the 4420 hellscape and win back some of the complete idiocy in the current ban in the process. 4420, among it's countless other problems made the MA AWB a single feature test.
I'm not going to restate everything. If you read 4420, look at the current law, look at how things actually are now, actually read the potential concessions I suggested but surely don't want, a negotiation can incrementally reduce the suck, and give them what they really need most which are 'We did it!" press releases.
4420 was the worst gun grab in MA history and we got a reprieve not because they listened to us about our rights but because they were forced to confront the incompetence of the language of the document vs the 'summary' and enough of them got pissed off Day was trying to game them. It paused because Day didn't manage them well. Cooler more conniving heads will take over now. We're going get a new bill written by competent lawyers, it will pass.
It will be a lot more like 4420 than the current law and they will find a million new ways to $%^& us, unless we participate in a way that lets them get a PR win with less worry for them over a court and protest fight but overall reduces our current pain.