I have been a gun owner all my life, 22 rifles, revolvers, misc small semi automatics, etc. The thing is I really don't know how to evaluate used pistols. You know, is the gun used up, burned out, ready for trash, etc ? Counter clerks are always a bit evasive about how to judge any given purchase and pretty much leave it up to the buyer. So the question is; How do you rate a used pistol at the counter, what do you look for, what are the signs of a good or bad semi auto pistol at point of purchase?