Marauder on CO2 question

I'm not at all certain what the current marauder model say's , it "was" ( can be) a "duel fuel" rifle , most pcp's can run Co2 but in some the O-rings would need replaced, middle of Summer adjusted correctly you should be able to get to 20fpe in .22 and it will be a bit of a gas hog - not an issue if you've got a 20lb tank or such- , in .177 "I" haven't seen one on Co2. Likely the review you watched was just at whatever setting it had not well adjusted. You'll love the trigger.

John