If you look closely at the bottom of the barrel in the flange receiver area you will see that the receiver is beat up but the barrel is not. It just does not work that way in real life.
You may want to note that there are two barrel alignment marks, one is from the manufacture the other placed there when the barrel was installed improperly.
This gun may not even be a NAVY.
97/95 % with original mag; well I am sure it is exactly the way they received it and it really has just lost 3% of its finish since that time and that is the mag that came with the gun.
Vern