Nano-Oil from StClaire weight clp5  15cc

If not the very best, it is one of the absolute best lubrications out there.
For knifes and guns or other applications were metal meets metal. It could be explained as liquid ballbearings.

Its an expensive product, yes - but compared to other lubes that are sprayed on, this is very saving as you only apply the right amount on the right place. which in the long run saves a lot of product and dont create a mess!

Text from manufactorer:

"Armament Lubrication for the new millennium

 Metal to metal anti friction lubricant. No ptfe or moly. Magnetically induced molecule is 0,09 micron, adherses to sub-microscopic metal crevices providing an extremly low-friction dynamic contact"

"for Guns, Rifles, Pistols & Knives use the 10 weight 
use the 85 weight on all Rapid Firearms if you favor a thicker lubricant or as a base before applying grease  ex. M14 AR-15
Smooth action is instantly noticeable & guaranteed on all
Firearms & Knives after applying only a few drops to all  
moving parts including the sear & bullet ramp."