Today, May 17, 2013, the California Department of Justice has certified that microstamping technology is now available from more than one manufacturer unencumbered by patents. Because of this event, microstamping will now be a required "safety feature" for all new handguns seeking approval by the DOJ for inclusion on the Roster of Handguns Certified for Sale.
The bulletin announcing this change can be read here.
It remains to be seen how handgun manufacturers will respond, but if they do not comply with this requirement, and many do not comply with the existing requirements, the effect will be a creeping handgun ban in California, with the models available for sale dwindling as the manufacturers allow the existing models to go out of production.
The only way to get this reversed will be either litigation, or boycott by the manufacturers.
Let me be the first to urge all firearms manufacturers to refuse to sell to police departments in California until this intolerable act is repealed.