We had some Elite models come back with issues that could only be rectified with a new slide and barrel combination. If any early gun came back for repair, we usually updated all parts of the gun whether it required it or not, just to be safe. I do not recall how many we did that to because as time marches on, sorry, but so my recollection is going along with it. . . . but I do my best to remember things to the best of my ability guys. ;-) lol.