Moly isn't the problem with Aluminum, Graphite is.

by Miles ⌂, CIVITATES AMERICAE, Thursday, September 18, 2014, 13:32 (3660 days ago) @ rob
edited by Miles, Thursday, September 18, 2014, 13:37

Molydisulphide grease is used when installing new barrels in "16s" (generic M16/M4/416 etc. etc.)

Graphite is what will cause galvanic corrosion and is strictly verboten.

About the only place you might think of using that grease on a AR type is on the bolt cam and cam area in the bolt carrier. You really don't need it on the bolt lugs


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