Eh. I've spent enough time working with AR's to know a little bit about what it takes to keep them running properly. There's "good enough" cleaning as in good enough to bet my life on it working in a war-time environment. And there's "gun safe" clean for when you have time to clean, soak to remove brazed copper and carbon from the steel pores, re-clean and lubricate your rifle. I make it a point to keep personal AR's "gun safe" clean, to the point of buying a
special tool to scrape carbon off of the inside of a bolt carrier and then taking a dremel brass brush to the ass end of the bolt. Because fuck nonmetallic/tetravalent elements, that's why.
If my rifle won't run; it's not for lack of cleaning.