[Edit: moved from necro thread] I'm having this problem on a relatively new, less than a year and a few thousand rounds, XDM OSP. First I had a failed extractor, I sent it back for that and they fixed it, and then the premature slide lock issue started as soon as I began using it after that repair. Slide periodically locks back on a mag that is not empty. I use for IDPA so the malfunctions are really annoying in competition (and real-world too of course). I sent it back to Springfield and they said they could not duplicate the problem, I insisted they try and they kept it for a while longer and still said it isn't malfunctioning. I love shooting the gun and it fits my hand just right but I'm on the verge of moving to my Glock 19 for IDPA. Any suggestions?