LOL -> NY, MD, CT, CA. This is what AR-15 life has apparently been reduced to for you:
As you can see, the upgraded (and I use that term loosely) magazine release button doesn’t move when the upper receiver is in the way because that L-shaped aluminum chunk is pushing against it. Backing out the rear takedown pin and canting the upper receiver forward lets you awkwardly push the button.
Criminals and law abiding alike can purchase these things for $50 over at the AR MR2 website.
Hat tip: Jay