Can Marvel Mystery Oil be used to clean and lube handguns, both metal and polymer frames?

Yes, I’ve used it on many firearms from Glocks to double barrel shotguns. It’s a better cleaning oil than a long term lubricant though. Being a thinner oil, it’s good for cold climates.

yes, if you search the forums i believe lubricating/cleaning firearms is one of the many uses which was added to “the list” a while back

Thanks Guys.......