It was a very early one. A "First Edition" model. Some early 290's had a "light firing pin" strike problem. Which is supposed to be fixed after "serial no. ????". I can't remember that number.
I also bought two "extended 8 rd." Sig mag's.
I have had absolutely no problems with mine after several hundred rounds. It is small, but at 20 oz. empty it feels like a brick when loaded with 1 + 6 or 1 + 8.
I'm very happy with mine, and it is my EDC.