Lightweight RC Shock oil is a quick solution (I use Team Associated 15wt RC Shock oil). Beware of the spray silicone lubes but if it's from an airsoft manufacturer you should be fine (eg. ICS silicone spray, TM silicone spray, UTG silicone spray, etc.) TBH most companies have them these days including SRC, KA, HFC, STTI, PForce, etc.
ಠ_ಠLess QQ more Pew Pew
READY TO >> RACE