I agree with Jim, they are typically lesser quality then the others you mentioned, but they also have a lesser price tag. I think they are the best bang for the buck for a good solid no frills gun you don't have to worry about. I've got a 12, 20, and.410 boxlock by Ugartechea. Like I said, good solid gun. But they do not compare to my Arrieta or AyA.

Hey Jim, how is that .410 doing? I assume it's the one I sold you...