The industry is in a slump, but Remington's problems were unique to itself. : America's oldest gunmaker declared bankruptcy last month. Remington Outdoor said it would seek protection from its creditors as slowing demand for firearms puts the squeeze on major names across the industry. But investors shouldn't assume this will be the new normal for gun companies, or that American Outdoor Brands (NASDAQ: AOBC) and Sturm, Ruger (NYSE: RGR) will be following suit. Remington's decline was borne from its own unique circumstances, and much of the blame can be placed at the feet of its private equity owners.