[digamma]

The concern is you have more unregistered and untraceable firearms accessible by those who shouldn't have them.

California has a law that requires the registration of homemade guns. That's a good start. Require registration and slap a serial number on a homemade gun.

I know the argument will be that anyone who wants to use it for a nefarious purpose won't register, but we continue to see data on background checks and other gun laws that show that people are either deterred from obtaining a gun or are denied from purchasing a gun due to regulation when they have barriers to entry. If you are a law abiding citizen who wants to make your own gun and register it, ok. Why should this be any different than buying a gun?

This seems like an easy call.