In California, it has always been possible to build your own rifle, as long as you follow a set of rules (i.e. make it yourself for yourself, don’t sell it ever, etc.). Please call the Committee on Public Safety and ask them to kill this bill.
Here is the text of AB 1673 and a link to its current status:
Let’s stop these anti-gun bills before they even get started by Registering to Vote in California and then getting to the polls and voting for pro-Second Amendment Legislators!