A 639 is the first S&W semi auto I bought , and it was from a buddy here . All I had was revolvers until one day I joined a discussion here in this section . I was PMed with an offer for a 639 and I bought it . I thought it was the greatest semi I'd ever shot . Soon I stared buying up 2nd and 3rd gen's , followed by my discovering PC's . It's been a great journey , though I wish I'd started earlier . You will find a lot of great people here and an awesome amount of info .