Just use beeswax furniture spray for wood furniture. Beeswax is all natural, good for metal as well as wood. Wont harm any seals or plastic parts. Self cleaning in that it doesnt build up. Also use it on your pellets to stop corrosion and in most cases improve accuracy. Once beeswax is used regularly, barrel cleaning become a simple quick process of just pulling a patch thru with beeswax spray on it followed by a dry patch. Beeswax is also a waterproofer for wood stocks so they dont absorb moisture. There are NO negative effects using beeswax spray. Been using this stuff for almost 30 years along with hundreds of other airgun shooters with no issues. I even usevit on my firearm bores and to remove finger prints..try it..you will like it !!