Any gun that gets fired gets dirty - no doubt about it. And if you get them dirty, it's your responsibility to make 'em clean again. This is how I do it. It's simple and effective, and doesn't require a bunch of complicated or cumbersome equipment. Are there other methods that will work? Sure. But this is how I do it, and it's been working for decades, so I must be doing something right.
Learn How to Clean a Gun