Originally Posted by fnfalman
Barely lube the contact points like rails, locking lugs, around the muzzle, etc.
For some ungodly reasons people think that guns; be they old or new, needed to be drenched with oil/grease. A little goes a long way.
This is true. Over-lubing can actually be worse that underlubing, because too much oil traps dirt and metal particles and actually helps that junk move into bad places.
There comes a certain point at which more oil does not mean better friction prevention.