OK, I have a very nice Ruger MK III heavy barrel pistol. I took a friend and her son out shooting on Sunday. While I was helping her son dial in my AR 15 my friend attempted to put the magazine into my Ruger. Well, she got it turned around and when she inserted it, it stuck. I could not get that mag out come hell or high water. I called Ruger on Monday. They said this is a real common issue with the MK II and III pistols. They have a mandated magazine disconnect lever that catches on a cutaway slot in the mag if it is inserted reversed. A repair would cast my shipping there, $35 labor and $30 return shipping..all told, about $90 plus the gun would be gone for three weeks minimum. Adding to it, the mag was full when it stuck and of course, one cannot ship a "loaded" gun. That's when the nice lady at Ruger said "there is a guy who makes a tool to fix this" I went to the web site, "mag-out.com" and sure enough, he explains the issue and sells a $20 to fix it. I ordered it and we'll see if it works. meanwhile, I'm irritated that Ruger knows of this issue and does nothing to fix it. I'm also angry at myself for not seeing this coming and preventing it.