Previous AWB and mag/ammo-ban scares taught me to prepare well in advance, so there is nothing major I need, except to replenish ammo as it becomes available at fair prices. I even sold two LNIB P-Mags to a co-worker, at the pre-scare price, figuring I had enough, and I do not own dozens of them.
I would like to eventually acquire a few more 20-round Mini-14 mags, but what I have is adequate. I actually prefer the rare ten-round Ruger factory Mini-14 mags, for their handier dimensions.
The only autoloading "assault" weapons that really interest me, for future purchase, are an M1A/M-14 or M1 Garand, and it would be nice have a spare Glock 17 or two.