California state lawmakers advanced a measure Tuesday that would make it easier to skirt a federal law in order to sue gun-makers, legislation that opponents say is ultimately aimed at driving manufacturers out of business. Different committees approved bills targeting ghost guns, requiring firearm dealers to install digital video surveillance systems, and barring the marketing of firearms to minors. Federal law blocks most of those types of lawsuits against the gun industry, but does permit some types of liability lawsuits, including when gun-makers break state or local laws regarding the sale and marketing of their products. California already has some of the nation’s toughest firearm restrictions. Among what legislative analysts count as 107 existing California gun laws is a 10-day waiting period, background checks for buying both guns and ammunition, restrictions on types of guns including assault-style weapons, and a 10-bullet limit on ammunition magazines.