might buy one used, afterthe initial buyers realize their mistake, 1000 sales wont justify the TOOLING to make a rifle, much less a factory.
10,000 sales might not. xm8 doesn't do a damned thing, for acivilian, that an AR doesn't, and it WONT do many things that the AR WILL do, like win matches, take 300m prairie dogs, use a .22 unit. Millions of guys already HAVE an AR, or they want the low cost of a bolt action. So the XM8 has a REALLY tough roe to how in order to be a successful civilian rifle.