First:
The bankruptcy filing by Remington Outdoor Inc., the company that makes the rifle used in the 2012 Sandy Hook Elementary School massacre, will force some of the victims’ families to seek approval from a bankruptcy judge to let their legal fight against the nation’s oldest gunmaker go forward.

Remington’s weekend filing, which will turn the company over to its creditors to now operate, automatically “stays,” or stops, any legal action against the company until it emerges from bankruptcy, experts said Monday.

But I'm sure that's just a coincidence. So let's look at purely financial considerations:
The National Shooting Sports Foundation shows that the gun industry overall saw an 81 percent increase in jobs between 2008 and 2016.

Sure, that growth was because of fear someone was coming to take your guns. But 81% growth has to be recognized as a bubble. It's got to pop eventually.