Although they would never admit it, I believe gun manufacturers are on the side of violence. The more violence there is (especially gun violence), the more we "need" their product. Cha ching!
If they don't see violence as a way to increase sales, why do they block legislation to keep guns out of the hands of the violent (or crazy) including their support for limits on background checks, or to limit the sale of the most deadly "tactical" weapons designed for war, or big magazines, or...?
Violence as a profit motive. Good for us?