Originally Posted by upstatedoc
The magazines would have to be sold not the guns. So you'd have to down-size from 10 round mags (instituted about 15 years ago) to 7 rounders. It'll be interesting to see how they enforce this but they probably didn't really think about it.
Not necessarily. What if you have, say, an M1 Garand.
This does seem to be implementing a law ex-post-facto, requiring the things to be sold. Unconstitutional double-whammy, but at least it'll offer zero benefits, too.