External cleaning of AEG
I'm not a newbie when I comes to firearms and there proper maintenance but new to airsoft. I've heard you need to use only a silicone based oil for the bore, but are there any restrictions on the external parts of the gun. I use an oil called break free on all my firearms and it works fantastic on metal parts. Will this cause damage to the gun? I have an Armalite M4. Any information would be much appreciated.