The law sucks and everyone knows it.
I think most people just make their peace with, "if I can show im trying to follow the law, will a DA risk prosecuting me when I am trying to follow the law"
I think 0.0% chance a DA will open that can of worms on the safe act if you have a mag lock on...
NY is utterly incompetent. They would never survive as a private entity if they're couldn't just continue to rape taxpayers as a captive source of generating revenue without consequences for their poor decisions and performance.
If you go with a mag lock, and end up needing to top load your mag, this will be very worthwhile.
https://ddsranch.com/ar-15-extended-rear-takedown-pin/
Makes separating the upper and lower much easier. Just pull the very easy to grab rear takedown pin and the upper pivots open to allow...
How far down the rabbit hole do you want to go?
Short of actually welding a metal mag in, that's the closest I can come up with to being permanent.
Anything else regardless of expoy in a nut hole, loctite on threads, all that is easily removed with tools.
Most people have made their peace...