Big_E said:
Plus, I think its a waste of time and money I don't even think CA requires this.
No California is actually worse, they require every semi-auto gun stamp something like a serial number on every fired casing. The term is micro-stamping, it was voted on and passed into law in California.
The irregular stamping surface increases friction, can slightly reduce reliability, and of course naturally wears away, can be filed off or replaced by any criminal, and normal citizens polishing the gun too much may accidentally remove it themselves. All making it suspicious to over clean the gun or replace broken or worn components with regular normal priced non-stamping parts rather than the special expensive firing pins, chambers, barrels, breeches, bolts, or whatever else is involved in the stamping of a given firearm.
The ease of changing the components could even lead to additional legislation once in place long enough to turn such regular parts into regulated components, like receivers currently are, to close the "loophole".
A technicality involving patents is keeping it from being implemented, but it is the law that any gun added to the California Approved Handgun list needs to stamp every casing with something like a microscopic serial number, passed by the legislator.
It may become a moot point if the approved handgun list itself is overturned in current ongoing legal battles. Requirements to be added to the list won't matter if the list ceases to exist.