Profiting from Ammo Companies

Isn't the progressive theory that the nonprofit National Rifle Association is just a prop of "evil gun makers?" So what does that make Tom Harkin's Harkin Institute? It accepted money from the parent company and CEO of PMK, maker of PMC ammunition, among other things. Only $500,000. The article linked goes to great pains to not quote Harkin railing against guns or bring up the fact the PMK owns PMC and makes over 1 billion rounds of ammo per year.