Just this picked this up today. I just noticed a problem with the gun. I am not a expert but there is a plate with a screw just abovet he trigger. The plate is not perfectly smooth with the frame and when you close the cylinder it makes slight marks on it. Is this and easy fix or should I send to my gunsmith? You can see the extra slight ring on the cylinder in the pic. Other that that the gun is in perfect shape for being 32 years old.