This is an attempt to summarize various postings on firearm lubrication. It is not intended to be the way to do it. Additions and corrections gratefully accepted.
Load carrying parts (slide rails, sears, and bolt carriers)--grease (fully synthetic and containing molybdenum may be preferred):
Firearm specific--Slip 2000 EWG (no molybdenum); Mil-Comm TW25B Synthetic Grease (no molybdenum).
General purpose grease substitutes available in small quantities--AMSOIL Synthetic Fifth Wheel Grease (no molybdenum); TS Moly-Lubricants GD-525 Moly Grease (may be too thick--has high molybdenum content); Valvoline Full Synthetic Grease (has molybdenum). Note that Mobil 1 grease is not fully synthetic.
Rotating parts--oil (fully synthetic preferred):
Firearm specific--Slip 2000 EWL; TW25B Synthetic Oil.
General purpose oil substitutes--ATF--AMSOIL Signature Series ATF; Royal Purple Max ATF; Valvoline Maxlife ATF; Mobil 1 ATF.
Bore oil for storage: Kroil.
Load carrying parts (slide rails, sears, and bolt carriers)--grease (fully synthetic and containing molybdenum may be preferred):
Firearm specific--Slip 2000 EWG (no molybdenum); Mil-Comm TW25B Synthetic Grease (no molybdenum).
General purpose grease substitutes available in small quantities--AMSOIL Synthetic Fifth Wheel Grease (no molybdenum); TS Moly-Lubricants GD-525 Moly Grease (may be too thick--has high molybdenum content); Valvoline Full Synthetic Grease (has molybdenum). Note that Mobil 1 grease is not fully synthetic.
Rotating parts--oil (fully synthetic preferred):
Firearm specific--Slip 2000 EWL; TW25B Synthetic Oil.
General purpose oil substitutes--ATF--AMSOIL Signature Series ATF; Royal Purple Max ATF; Valvoline Maxlife ATF; Mobil 1 ATF.
Bore oil for storage: Kroil.