Remove the bolt and striker(keep track of the order that you took them out). Swab out the upper and lower tubes. Lightly oil the upper and lower tubes(optional but it's what I do) with an oiled up swab. Put a couple drops of paintball specific oil on the 3 high points of the bolt and striker and spread it around with your finger. Put everything back the way you took it out. Do this after every time you play and you will have little probs when using your marker the next time -
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