I have one of these (standard model, to be precise) that is just a mess. The inside is filthy and I can hear grit inside when I cycle it, and malfunctions have become more frequent lately. I fire about 150 rounds a week through it, and have been for a long time. My normal post-range cleaning process involves brush and patch down the barrel (the wrong way), digging out what gunk I can through the ejection port with solvent-soaked q-tips, lube in the working parts, and an exterior wipe-down with oil. A few years ago I took it apart for a thorough cleaning, and was only able to get it back together with the help of youtube after an embarrassingly long time with a considerable amount of profanity. So disassembly is out- even whatever "easy way" anyone wants to share . Not doing it again unless I actually break it. I was thinking about removing the grips, locking the slide open, and soaking it in some type of solvent in a bucket or the like for a while to maybe loosen up a lot of the garbage in it and then blowing out what I can with compressed air. Does anyone else do this? If so, what solvent would be good? Also open to other ideas that don't involve taking it apart.