Colt, Rock River Arms, Daniel Defense, Spikes Tactical, Smith and Wesson, Sig Sauer, Remington, BCM, Bushmaster, LWRC, should I keep going? They all get their parts from elsewhere. And no, receivers don't come from Tennessee.
Nope, didn't build them. What'd you spend on yours? You buy one of the prototypes that was disclosed prior to original owner purchase that they were still in testing phase? To come back with feedback? Or you just get it second hand from a buddy trying to rip you off?
And yet you bought it? Someone with such a discerning taste such as yourself should have easily noticed "****ing junk period" prior to purchase. Or was it perhaps substandard user skill?
That's a shame. They stand behind their product and would have fixed any issue you had. Maybe next time try the awesome customer service before you talk trash.