To polish your barrel you need a drill and a cleaning rod and a brass brush and some 0000 steel wool wrap the steel wool around the brass brush and polish the heck out of it i used extremely fine sand paper on my mossberg barrel they are extremely rough and they wont shoot to their max without the barrel poloshed. on my remington I just polished the rear forcing cone its as shiney as the rest of the barrel now hope this helps toto can probobly tell you better than me