Lucas Gun Oil or Mobil 1 5-20.
MM
I've been shooting semi-auto handguns for a long time. The ONLY lubricant that I can say actually made a difference - for the better - in how my semi-autos ran is Lucas Gun Oil.
Mr. Lucas thanks you.
Quite the success story, he is. A very humble man, as well. Saw Levin interview him a few weeks ago. Gave Levin the soup to nuts short story on how he built the business and how he developed the additives.
Entrepreneur from the ground up.