good news...after just a week or so s&w sent my gun back w/ the new parts and i put 200+ rounds in yesterday w/ no issues. i am very happy w/ s&w's customer service and also how quickly they resolved the issue. i also got the new style of mag which probably helped. just wanted to let everyone know the repair worx so if ur having issues send it in. it wont take long to get back and u will get the new style of mag.