The EZ D9/40 sights and the hard chrome 10X bushing (the blued version was out of stock) came in today. After installing both I am now satisfied this gun will shoot as good as it looks. I went from badly vertical stringing a 4" group to a satisfying 1.5" group dead center at 25 yards. The barrel is so tight in the new bushing it had to be coaxed into the slide but that is exactly how I like it. The OEM bushing fit pretty tight on the sides of the barrel but had an awesome amount of play vertically. The OEM bushing and barrel are not worn, the barrel had no wear marks on it at all. The bushing was just poorly fit and the vertical stringing of the groups proved that out. The full sized EZ D9/40 sights give a wonderful sight picture that is hard to find with any other combination, they are just so easy to see and the sight definition is super HD, I don't know why I even thought about installing anything else. I will call this one done.