I am also having the issue of the slide locking back when the clip still has rounds in it. I sent it back to S&W with out the clips per their instructions and they returned it back too me saying they put 5 clips thru it and could not reproduce issue therefor nothing to fix. When I got it back I took a dremel to the location one writer talk about on the grip portion of the gun. Took it to the range and it malfunctioned twice on the first clip and 4 more times in 3 clips. I have since returned it to them again with the clips as per their instructions. I am hoping they can fix the issue but not real confident. Is this a common issue? I don't seem to here a lot of this issue. Did I possibly just get a lemon?