Was doing this for one of my buddy's G23 Gen 3 Advantage Arms .22LR kit. He saw the barrel I did on my G23 Gen 4 and the Gen 4 G23 AA kit that I have and he asked me to do this on his kit, as well. He wants to start shooting cheaper ammo and wanted the "Make your Advantage Arms Kit Eat Anything" mod, without the extractor polish. Seems like that user on the other forums has deleted his reference photos and such so I"m going to paste the text here for posterity: please keep in mind that these are not my instructions and polishing any piece of a firearm carries with it risks. By doing this process, you assume ALL responsibility for the results.