That's kinda the point. No one knows when he bought the magazines, and without that, you can't say they were illegal.
Still going for the dodge I see...
Still going for facts. Do you know for a fact when he got the magazines?
Do I really need to burn your dumbass again?
"The suspects used two different brands of AR-15,
one made by Smith & Wesson, and the other by a smaller manufacturer called DPMS, both of which were
reportedly purchased by a third party. The Smith & Wesson rifle was modified in an attempt to make it fully automatic, and the DPMS rifle had been changed to quickly accept and release magazines. California
bans the most common versions of the AR-15, which come with detachable magazines that allow for quick reloading with the touch of a button. To get around that law, many companies — including both Smith & Wesson and DPMS — make “California compliant” models with fixed magazines that can’t be released from the body of the gun with the press of a button. Often with these California models, shooters must open up the gun’s receiver and reload rounds one by one."
I got more...or your dumbass could do a search on your own.