Since that technology doesn’t even exist yet, Kali is mandating it. A court challenge is ahead, if not already in the works.
Ahnold signed the legislation in I think 2008, and part of the law said that it went into effect when the California AG certified that the technology does exist. That happened last May.
I just checked the California Roster of Handguns Certified for Sale and this gun is on the list. So it was approved before the microstamping law went into effect.
However, if they make any changes in manufacture at all, it will have to be recertified and in order to pass it must also have microstamping technology.
This is why Ruger and Smith a& Wesson have said they will no longer be able to offer new guns to California.