February 28, 2018: Dick's Sporting Goods announced that it would raise the minimum age for purchasing guns to 21 from 18 and that it would stop selling assault-style rifles at its Field & Stream stores. The change follows a group of nuns, led by Sister Valerie Heinonen of Mercy Investment Services, meeting with Dick's Sporting Goods executives in January 2018 to discuss how the company sells weapons and a Mercy Investment Services shareholder resolution in December 2017. The resolution asked Dick's to report on how it was implementing the Sandy Hook Principles, which include reevaluating policies regarding the sale of military style assault weapons for use by civilians.