Well with one of mine I have no choice. Can't mod it to a slick tube. Only mod would be chop the tube off. Factory built. Great shooter too. View attachment 204920
Is anything in that fake buffer tube? Take a sawzall to the bottom of it, clean it up with a file, fill it in with epoxy and make it a rounded cylinder. Paint it and then sleeve it with rubber or foam and nobody would know what a hatchet job it looks like under it