I had an American Classic II. It had the WORST bore I'd ever seen on a firearm. That includes surplus stuff.
The bore was gouged throughout it's entire length and the rifling was cut at varying depths. The barrel walls were also thicker on one side than the other, like it was bored off center.
After seeing that, I went back to the shop where I bought it and looked at the two other Metroarms/Firestorms they had. Sure enough, they both displayed varying degrees of the same shoddy work.
The authorized repair center (CGW) acted like it wasn't an issue and said it should shoot fine anyway. If I really wanted, they would look at it and fit a new barrel, more than likely of similar quality. I decided not to waste my time or the cost of shipping.
I decided to run a few rounds through it to at least see how my $385 headache printed. The rear sight fell off after three rounds.
A friend of mine who isn't a shooter was looking at my handguns. After handling the Metroarms, he picked up my Kimber. Unprompted he said that they look a lot alike, and referencing the AC II he said "but this one feels fake".