From https://qz.com/1219495/remingtons-ar-15-the-financial-histor...
"It was still a profitable company, except that its owners had loaded it up with debt in typical private-equity style to divert profits to themselves. In the first nine months of 2016, the company could pay $45 million in interest to its creditors and still walk away with a $19 million profit. In the same period in 2017, Feinberg and the company’s remaining investors faced a $60 million loss"
So this just appears to be another example of a private equity company buying up and saddling a profitable business with unsustainable debt, much like what happened with Toys'R'Us et al. The same pattern we've been seeing for a while.