CHANGE: Walmart Brings Guns Back: “Wal-Mart said Thursday that it is bringing guns back to many of its U.S. stores in an effort to lift slumping sales. In 2006, Wal-Mart (WMT, Fortune 500), the world’s largest retailer stopped selling guns in the majority of its stores, blaming slow demand for those types of firearms.” Nowadays, guns and ammo are regarded as good investments.