...Is what it has done to price and availability. An AR-15 used to be about the cheapest good rifle you could buy and the only one you could use the modified Johnny Cash ("One Piece At A Time") method* to put together as you could afford it. --Well, good luck with that now. You'll probably be doing it one piece at a time, all right, but not on the cheap and there'll be serious scrounging involved.
And the vanishment of .22LR ammunition is just sad. Doggone it, that stuff is the firearms equivalent of penny candy and now there ain't none? Grrrrrrrr. I'm down to like my last 1200 rounds and it's making me itchy.
If I'd needed any more reasons to oppose gun control, this would be plenty.
* The "modification" being, you buy the parts one at a time instead of sneaking them out of factory. John, John, what if everyone did that? --Well, the UAW kinda did. Madcap hijinx have ensued, also bankruptcy.