"Ruger recently discovered that all Mark IV™ pistols (including 22/45™ models) manufactured prior to June 1, 2017 have the potential to discharge unintentionally if the safety is not utilized correctly."
My 22/45 is on the recall list (but doesn't seem to have this issue), and you can enter your serial # in the following link to see if yours is too. They are sending the instructions, shipping label, etc., for the frame. For your trouble, Ruger will send you a free magazine (which is about a $30 value).
https://ruger.com/dataProcess/markIVRecall/index.php?r=y
My 22/45 is on the recall list (but doesn't seem to have this issue), and you can enter your serial # in the following link to see if yours is too. They are sending the instructions, shipping label, etc., for the frame. For your trouble, Ruger will send you a free magazine (which is about a $30 value).
https://ruger.com/dataProcess/markIVRecall/index.php?r=y