First off hello, first time poster here, and my apologies for the length. I have several years of handgun shooting experience and in January I bought a Ruger SR9 as my first handgun. I love the gun, love how it shoots, and up until today I've had no problems with it. I've shot just over 800 rnds through it, mostly 115 gr ball and hollow point, lots of cheap stuff and reloads and it's fed everything with only a stovepipe or two in the first 100 and none after that. However, today at the range in the middle of my shooting session, the gun started locking back every shot or every other shot. I tried using other magazines and tried racking the slide without a magazine inserted and continued to have the problem, sometimes it would return to battery without issue but most of the time the slide stop would remain up as I tried to rack the slide and the gun would remain locked open. When I got home, I broke the gun down and when I looked into the frame I saw that the spring that retains the slide stop appeared to have come off the slide stop and was now in front of it. I tried gently pulling the spring back into place with a plastic tool but with light pressure it wouldn't budge and I'm no gunsmith so I'm hesitant to mess with the internals of the gun. I did a quick google and despite my pre purchase research found out that this was a reported issue with the gun that I had not heard about. It sounded like the solution was to send it in to Ruger to get the slide stop and spring replaced but I was really hoping to do some more shooting this week so here are my questions: Do any of you have any experience with this issue? Does this require that I send my gun into Ruger to get it fixed or would my local gunsmith be able to take care of it? Oh, I don't believe these things would cause the problem I'm having, but I do have a Galloway precision guide rod, striker indicator, and traction grips installed. I will attach some pictures of the slide stop with the detached spring. Thanks for any advice!