As part of our Firearm Maintenance Series, in this video one of Brownells gunsmiths goes through step-by-step how-to properly re-assemble the Remington 870. Be sure to check out the other parts on how-to disassemble, clean, and lube an 870. For more firearm how-to's or to get the products used in this video visit http://www.brownellsvideos.com