I got a couple of these guns on trade and got the other from a friend. I never shot or aired any of them up. Im sure they all could use a rebuild. If I have anything listed wrong, feel free to correct me because I am no mag expert. A barrel comes with each marker, take your pick. Im looking to get out of paintball so I do not want any trades. If my prices are too high let me know, I want to move these. I am not guarenteeing these markers are in great shape, I have not aired them or nor fired them.