I've been using TW25 for a few years now on my bolt rifles and AR's. It's been used by the military for some time now. I like the grease better than oils, stays where you put it. I've tried the Teflon oil but don't particularly care for it as it seems to dissipate too fast. One oil that does seem to work well is the CLP made for auto weapons. It is thicker and adheres to a bolt carrier much better than standard oils.
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