I'll say the same thing I said about ammo for the last 4 years, if you want mags get them now while they are cheap. The first 3 years of Trump I never paid more than $7.50 for a box of factory 9mm after rebates and sales, some approaching $6.50/box for black friday deals. That's $150 a case, right now that same ammo is selling for $800-$900 on Gunbroker as fast as it's put up. After Obama there was NO way with the upcoming election that ammo panic buying was not coming again in 2020, Covid just started it a bit early. Anyone that didn't see it coming was either blind, or new to shooting. So if you want hi-cap mags, I'd buy them now, they will likely never be cheaper, and you may not be able to get them for long.
Don't think we'll see a magazine capacity ban? I remember when everyone thought that couldn't happen back in 93' too.