Gun groups assembled to file a lawsuit on Tuesday against Maine’s new 72-hour waiting period to purchase firearms, arguing that the law is unconstitutional. The coalition is seeking an injunction to stop the law from being enforced until the case is decided.

Gun rights advocacy groups in Maine are challenging the state's new 72-hour waiting period for firearm purchases.

A coalition of gun groups has filed a lawsuit claiming that Maine's new 72-hour waiting period for firearms purchases is unconstitutional and seeking an injunction stopping its enforcement pending the outcome of the case.