After each day of play, I pull out the bolt and lube up all O rings in that assembly. You should probally take it all apart about every 6 months and lube up all other rngs but besides that its real easy.
**** Use ONLY SL33K lube, if you don't want to vid the warrentee***
Dark Trooper CS1
Storm Trooper LV1
1 of 12 Paintballers Inc Tribal Ego 9 - White/Red