Some U.S. companies that offered discount programs and other services to the National Rifle Association are ending them as the powerful lobbying group fights efforts to restrict firearm sales following a deadly school shooting in Florida.

MetLife, the New York-based insurer that offered price breaks on auto insurance to group members, said Friday that it would stop doing so. “We value all our customers but have decided to end our discount program with the NRA,” the company said in a statement.