You need to open the action, incert a drift the into the hole on the action tube "as close to the size of the hole you can get"and unscrew it,close the action and continue to pull the barrel action tube and bolt out of the receiver,its not that bad of a job but I dont recomend doing it for just a cleanning. The best way to clean it is to pull the trigger group, scrub it out the best you can with Break Free then use Brake Clean to wash everything out, respray liberalywith Break Free and let it sit on some rags overnight thenwipe down.