Buy high capacity magazines, they are cheaper than guns; if you are lucky and people start panicking, they increase in price when they are about to be banned, you sell as many as you don't need and buy whatever gun you want with the profits.
Example- Glock 17 ... you can easily find 10 round mags for them later... and Glock 17s are still selling in States with 10-round limits with the crippled capacity mags
Invest in Mags they'll ban; sell mags just before transfer is outlawed, and profit enough to win a free Glock 17 ...
And, if they don't ban the mags, you have plenty for the end of the Mayan Calendar or whatever
When I was young long long ago, I used to own a LOT of 20/30/40/50 round SKS/AK/Mini-30 mags ... sold them ... didn't want them sittin' around rusting when people were paying double what I got them for
Wanna Bet certain Democrats don't do investments similarly based on potential legislation?
Just Kidding ... sorta.
I'd hold off on the .380 and buy what will increase in price later/what you can use even if there's no increase/what you might not can get some day/what you want.