Surprised about the P series Ruger having problems. Those guns are known to be tanks but I guess theres always the potential for a gun to have a problem. That said I've never heard of any one specific brand or model AR having problems or recalls, anything of that nature whereas lots of guns have been know to have problems like Kimber and external extractors, XDs recall, and the like.
yes i was also very amazed as it was the 3rd p-series pistol that i owned and the only one i ever bought brand new. but the slide messed up after only 400 or so rounds down range. the other ones i owned had 1000's through them w/absolutely no hiccup