dont take apart the action/assy just sprya it out with super hot water or some foam cleaner, or spray in som e regular solvent. keep the buffer clean and dry though. that is the whitish plasticky looking ting at the rear of the action. you may wanna get a dental tool fro the area where the bolt assy. face goes into the chamber face. the extractor on the left side, kinda fits into a groove over there, so keep it clean, to keep extractor clean, also that you will get good bolt assy. seating. dont need to scrub the bbls to much, couple of brass strokes is fine. then foam cleaner, leave it set in about 20 minutes, patch it out, repeat about 2 times. After this your first really good cleaning, RESIST CLEANING! let it stay as dirty as possible, until it just stops working. any other cleaning is unecessary on this gun, and will just wear it out faster.