NHunter, I don't understand where you're going with your statements?! Both, IRG and Glock representative went over and beyond expectations to resolve this issue and make the customer happy. Obviously there seem to be barrel finish issue with all Glock gen 5's but it is not due to lack of QC, it seem to be related to tighter tolerances in gen 5 in order to obtain more accuracy and apparently gen 5 doesn't disappoint in that department. So it seems like you could slow down the wear by generous application of high temp. grease on the barrel and the hood and rails but the wear will show up anyways and once the level of finish wear has gone to a certain point it stays there and it is not going into the metal itself.