[Goliath442]

i have a tac-5m recon gun [wal-mart gun] and when i install the co2 tank air leaks out the barrel[like a fine mist, but lots of leakage]. There is no other leaking and it leaks only out the barrel even if the cock is pulled or not. i have pulled it apart and the o-rings look fine and have replaced the o-ring on the co2 tank. i even made sure gun was clean and used gun oil on o-rings like it said too[2 drops on o-rings]. can anyone help?

[toXic]

Try turning down the velocity. If it has a velocity adjuster, I am not familiar with those markers.

If you did all that and it didn't help, either a part is installed improperly or you have a bad part. Which can be very likely for walmart guns. Nothing against them or anything, but you know.

[TheAznInvazn]

Could be your cupseal

[2.0]

Gotta be an o-ring or a valve problem. Lube up your marker and see if that stops it. If not, check the valve for damage like cracks and that.

[toXic]

If it is still under warranty just take it back and get a new one...

[Trbo323]

whatever the problem is, if it is not a common o ring id guess its gunna be hard to track down parts for, if its under warrenty id get a new one and sell it for what you can get for it then go to a paintball shop and get an entry level marker that they carry parts for (a basic pmi pirahna will be under $100 and easy to work on for example)

[delsin2]

I think Toxic is right, u may get new one.