To get around this, gun manufacturers are selling firearms to Californians with what is called a "bullet button." The user uses the tip of a bullet to release the empty magazine and pop in a new one.

SACRAMENTO — They’re sold legally across the state, but come January, new laws that expand the state’s definition of assault rifles will ban the sale of guns that use bullet buttons to swap ...

Many guns in the style of the two AR-15 semiautomatic rifles, a .223-caliber DPMS Model A15 and a Smith & Wesson M&P15, are banned under a 1989 California gun law targeting assault weapons.

Other laws taking effect prohibit gun owners from loaning their firearms, other than to family members, and require conceal carry and law enforcement weapons to be locked away in parked cars. IN ...