Originally Posted by
Salamander
Unfortunately, no.
Until a year or two ago, it was a fairly common loophole to transfer possession of magazines as part of private firearms sales. Some folks would disassemble high-cap magazines prior to a firearms transfer, and call them parts kits. More than once I saw LE guys do this when selling to civilians, including one who assured the FFL doing the transfer that it was perfectly legal. Someone in the general assembly caught on though, and amended the regs to specifically ban this. At present, anything holding more than 10 rounds is allowed here only for LE or if it's grandfathered. For most people that means pre-2000, and for someone visiting it would be pretty tough to argue that mag has been in California for the past 16 years.
There's at least one initiative in the works that would take even that away, if it passes.