Shine up that barrel.....

With a little effort, you can make your factory P-3AT barrel look a lot better. Take sandpaper in this order (320,400,600,800,1000,1500,2000) and sand for 2-4 minutes using a wetting agent (I used ballistol). Next use #0000 steel wool, again with the wetting agent (ballistol in my case) for a good 4  minute scrub. You will end up with a barrel that shines like a mirror.