I really don't know anything about Gun parts. I'd think lowers would come with serial numbers?
From the article:
"The suit names Blackhawk Manufacturing Group, GS Performance and MDX Corp., three companies that are not based in San Francisco but are responsible for producing a large share of the firearms found in the city and elsewhere in the state, Boudin said."
"The lawsuit, filed jointly with the Giffords Law Center to Prevent Gun Violence and law firm Keker, Van Nest & Peters, alleges that the companies violated state laws that require them to apply for serial numbers and that they misled consumers into believing the weapons were legal. It seeks a court order that would bar the companies from shipping their products in California and also seeks monetary penalties."
https://news.yahoo.com/san-francisco-da-sues-3-231746192.html
From the article:
"The suit names Blackhawk Manufacturing Group, GS Performance and MDX Corp., three companies that are not based in San Francisco but are responsible for producing a large share of the firearms found in the city and elsewhere in the state, Boudin said."
"The lawsuit, filed jointly with the Giffords Law Center to Prevent Gun Violence and law firm Keker, Van Nest & Peters, alleges that the companies violated state laws that require them to apply for serial numbers and that they misled consumers into believing the weapons were legal. It seeks a court order that would bar the companies from shipping their products in California and also seeks monetary penalties."
https://news.yahoo.com/san-francisco-da-sues-3-231746192.html