Ordered myself a new toy today, an M&P15-22. This will be the first rifle I've ever owned, so I'm not sure what I need to clean it or how to clean it. Am I better off with a cable based system (like the Otis ones) or a rod based system? I've read it's best to go from breech to muzzle, this seems like it would only be possible with a rod based system. Thanks for any input!