Well, the U.S government is the single biggest purchaser of guns & ammo in the world. Not even close. E.g. they annually procure by an order of magnitude less

Well, the U.S government is the single biggest purchaser of guns & ammo in the world. Not even close. E.g. they annually procure by an order of magnitude less small arms ammo than the 12+ billion produced in the US alone for civilians every year (and that doesn't count the seconds that ATK sells to us from Lake City). Similarly, by now we civilians are every year or two buying as many new guns as all the governments in the US have in their active inventories (not going to count old stuff in Cosmoline, which they should sell more of to us, next up are 10,000 M1911s, maybe). Nope, any existing companies that manufactured so much as one smart gun would be boycotted by us civilians and go out of business, as Colt is close to doing for various reasons including depending too much on the DoD, and, yeah, that smart gun flirtation and general cooperation with the gun-grabbers.