Air Venturi avenge-x

I recently put the saber tactical chassis on my Avenge -x . Also, made a caliber change with new barrel and probe kit .
When I began charging rifle with air .
The rifle now leaks !! Pretty noticeable where it's leaking .
When I apply upward pressure to both tube and barrel , the leaking sound of air stops . Seems to be where barrel meets receiver?
Is this common . Could it be the barrel when changed is not properly aligned for set screws on top receiver "pic" rail?? Or is this a cylinder issue?
Also , it was very tight "CHASSIS" when installed.
Thanks for any feedback.
Hopefully someone has seen this and I won't have to go into a deep dive with complete dissassmbly...
 
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I recently put the saber tactical chassis on my Avenge -x . Also, made a caliber change with new barrel and probe kit .
When I began charging rifle with air .
The rifle now leaks !! Pretty noticeable where it's leaking .
When I apply upward pressure to both tube and barrel , the leaking sound of air stops . Seems to be where barrel meets receiver?
Is this common . Could it be the barrel when changed is not properly aligned for set screws on top receiver "pic" rail?? Or is this a cylinder issue?
Also , it was very tight "CHASSIS" when installed.
Thanks for any feedback.
Hopefully someone has seen this and I won't have to go into a deep dive with complete dissassmbly...


The O-rings around the barrel, that seat in the receiver are easy to nick or cut. There is a cautionary note in the directions. I suspect that is the issue. At least that is where I would be looking first.
 
The O-rings around the barrel, that seat in the receiver are easy to nick or cut. There is a cautionary note in the directions. I suspect that is the issue. At least that is where I would be looking first.
Thanks . I will look there , Pretty new to the air stuff . They seem to be very delicate!!! Or I should just leave them alone "stock" and just shoot em.