Neither is the AK-47. But I own a few of them and have sold my AR's. The AR is more accurate, but the AK is functionally a better weapon. I buy plenty from our nation. But some things are done better by others.
Most of my guns are U.S. made. My Glock is austrian and my favorite handgun. We don't build it's equal. The Austrians don't build an equal to my 460 Smith and Wesson. Different guns different purposes. When, and a big if these days, America betters the Glock, count me in. Until then I will chose the best for what I can afford.