Well, that's interesting. I checked the repair work order from my own KS7 warranty service, and the first two items on your work order are not mentioned on mine and the first two items on mine are not mentioned on yours. Instead of "replaced barrel extension, bolt assembly, and mag springs" they just replaced my bolt assembly. And instead of "Replaced CTG inner, CTG outer, CTG spring, actuator bar, hammer springs and action lock with newest revisions," mine says "Updated grip assembly with newest revision." I guess they really do individualized mods. Mine is a 1st Generation model.