+1

Mobil 1 has a HELL of a lot more research than any gun lube out there. The most important function of motor oil is to reduce friction and hold up against heat. The same two things an AR experiences. Mobil 1 is likely much more advanced than many gun lubes and is cheap in comparison.

Don't get me wrong - there are plenty of fantastic gun lubricants out there.

But run an AR wet and it will run just fine - regardless of the lubricant used....for the most part.