Attorneys general from 10 states are moving to oppose a settlement with Remington Arms Co. in which they insist that most of the owners of 7.5 million defective rifles would remain unaware that they could unintentionally fire at someone or something.

In a motion filed Tuesday, the attorneys general said they hope to file an amicus brief in a case that’s become a target of class action notice critics. In the proposed brief, attorneys at the Massachusetts Attorney General’s Office said the settlement’s notice plan fails to warn class members about deaths and injuries associated with the defect — a slight that could end up being a public safety concern given the “shockingly low” claims rate of 19,400, or 0.26 percent of the total class.

Gary Klein.