-Great on all metal internals
-Little goes a long way
-Doesn't eat O-rings
-Not spectacular on plastics
-A little smell on hands
When polishing my A-5 I greased it up with Gun Drops. They lubricate great and it doesn't take much. After toying with my A-5, I decided to give my .68 Special a try. Everything worked fine just after lubing.
However, after several months in storage I discovered that the forward receiver became gunked up from the front bolt (plastic) reacting with the gun drops. O-rings are still in great shape though.
As long as you don't use this on plastic internals (excluding O-rings) you will have excellent performance from this lubricant.