In a statement, the National Rifle Association said the move"is nothing more than a capitulation to anti-gun politicians and activists bent on eroding the rights of law-abiding Americans one transaction at a time."
Mastercard said that it will work to protect"all legal commerce" and"the privacy and decisions of individual cardholders" on its networks. American Express and Visa, the world's largest payment processor, also committed to implementing the new code. "These new merchant codes will help banks and financial institutions track suspicious and potentially illegal gun purchases," said a statement from Shannon Watts, founder of Moms Demand Action, which advocates for public measures that can protect people from gun violence.