Buy it IF the guy will allow you to pull the slide and look for chips and wear on the rails and contact surfaces. Mine shoots just fine and has no wear after thousands of rounds and is 100% reliable. Others have problems - I don't know if the factory let some go that were out of spec, or if it's a monday morning worker issue, but some of them just ain't right. Most of them are just fine and I'd snap it up like a duck on a june bug for $75, IF I could carefully examine it first.