Thanks Guys!
Since it's time for cleaning I decided to touch the base on disassembly of the pistol.
Step one: remove the magazine...
Step two: lock slide back...
Step three: press the ejector down...
Step four: press takedown pin and pull it out...
Step five: remove slide assembly....
Step six: remove recoil spring and the barrel...
Pistol is field stripped now. Again, no unusual wear was noticed. So far, so good.