The stock always goes up after shootings because of the conspiracy theorists. They were out there within minutes of this happening, online, saying the gov't will use this as a chance to grab everyone's guns. Some of the crazy rationalizations out there is just mind boggling. If you think the bump stock is bad, look up the "3MR" trigger switch. No holding a bump stock with two hands. They both should most definitely be off the market, imo.