I think a how-to or tutorial is in order here! If anyone has the proper information and documentation (PICS ) of their own personal experience with this "mod" please share. I think a polished barrel would look 8) pimp mcnasty to say the least...
From what i have been told in the past on the old board, it will not void the warranty. You do need to coat the barrel with a light coat of gun oil to prevent rusting. I first broke down the gun I used 400 grit sand papaer to remove the original powder coat. Took a while, but i didnt want to put any big scratches in the barrel. After that i used a dremel tol and a special bit. They make a kit for 13 bucks at wally word for cleaning and polishing. I used the bit with the polish already in it, and went to town. It should be noted that i did not seperate the barrel from the frame. After you HAve polished it to your satisfaction CLEAN CLEAN CLEAN. The compound gets everywhere. I removed the grips and gave everything a complete cleaning and lube job.
Or, you could just stuff a bunch of cotton balls down the barrel and in the Mag well to keep the compound going into all the moving parts. It would be easier to clean that way. Just remember to remove the cotton from the barrel before re-assembly.
Personally I like the powder coating on the steel barrel. Makes it more weather resistant.
The reason that the sides of the barrel can get burnished is because the slide rubs it when recoiling. I have gently polished the slide where it goes around the barrel and it stopped the wear on the barrel.