if you dont know what you are doing id recommend letting a gunsmith clean it for you most gunsmiths will only charge 20 or so bucks to clean it. also while he or she cleans it see if they will let you watch and teach you the basic take down of the gun. A buddy of mine owns a gun shop he spends more time fixing guns where the owner had no clue as to what they were doing and ended up breaking or losing parts. My best advice to you is dont try it yourself besides you may end up kicking yourself in the rear if you did lose or break any parts since parts for you particular model you have are very hard to find.