To put it simply, "microstamping" does not exist as a viable commercial technology. Therefore, a law requiring it be included in new firearms is essentially an attack on a person's right to keep and bear arms. Furthermore, this California legislation clearly demonstrates the attempts by that state to bully national gun policy through both legislative and market forces affected by their giant economy. In this case, the market has said, "No," and the Los Angeles Times editorial board is indignant about it. The law is still on California's books and it has effectively stopped new firearms sales in the state, so why is the Times upset? Because they have not been able to strangle the Second Amendment outside of California with this one... yet.