You can easily do more harm than good with something like that. In fact, a quick wipe of parts to check for breakage or premature wear is all I do to any of my AR's. Relube copiously and shoot the piss out of it. A well-made gun with properly dimensioned components out of proper materials, lubed correctly should never need that type of maintenance. There's lots of evidence that over cleaning guns, and especially using tools such as that, are far more likely to induce malfunctions and cause premature wear and breakage than never cleaning that crap off it at all.