First and foremost, a quality gun is one that works every time. It doesn't matter who made it or what options it has. At 20 feet, it doesn't matter if it shoots 2" groups or 8" groups.
I guess this definition of quality sounded better in your head...because it looks ridiculous in script.
According to your definition, as long as a bullet comes out at the end then it is a quality piece. I mean seriously, an 8" group at <7 yards?