On July 1, 2026, the U.S. Department of Justice (DOJ) filed suit against the state of California to block enforcement of a new state firearm safety law that was set to take effect on July 1, 2026.  The DOJ claims the law unconstitutionally violates the Second Amendment.   

Assembly Bill 1127, a first-in-the-nation law prohibits licensed firearms dealers from selling certain semiautomatic pistols that state lawmakers say can be easily converted into fully automatic weapons using illegal devices commonly known as “Glock switches.” The DOJ’s lawsuit seeks to block enforcement of both Assembly Bill 1127 and California’s handgun roster, which limits which handguns can be sold through licensed dealers in the state. Governor Gavin Newsom and state officials, however, argue the measure is a common-sense public safety law designed to curb the growing use of illegally modified firearms.  

In its lawsuit, the DOJ claims that California’s law deprives the citizens of California of their constitutional right to buy and sell arms protected by the Second Amendment. The DOJ is requesting the court to issue a declaratory judgment and to prohibit California from enforcing the statute and the handgun roster.