Then if I where you... I'd do nothing. :tiphat:I have 5 Mark IIIs. All 5 are completely stock excepting for the sights. None of them ever jam, have FTEs, or any such stuff. :cryinglaugh:
Not sure that I am convinced that the LCI is any kind of issue. Pretty sure it is not.
I do nothing to my feedramps except clean them with a Hoppes #9 soaked Q-Tip.