N/A Nova Liberty slow leak???

From the picture I see you have marked several areas that are leaking or are potential leak spots. I suggest you order an O-ring kit or 2 from Captain O-Ring ( https://www.captainoring.com/store/c80/AmericanTacticalNova ). Another area these Nova Liberty rifles are know to leak from is the poppet. Does your rifle leak air through the barrel? You can check for a poppet leak by attatching a ballon to the barrel and looking for it to inflate some. Unfortunately I am not aware of anyone currently building replacement poppets. Maybe contacting Pyramid Air or Air Venturi will help locate a replacement poppet. Good luck to ya.
 
From the picture I see you have marked several areas that are leaking or are potential leak spots. I suggest you order an O-ring kit or 2 from Captain O-Ring ( https://www.captainoring.com/store/c80/AmericanTacticalNova ). Another area these Nova Liberty rifles are know to leak from is the poppet. Does your rifle leak air through the barrel? You can check for a poppet leak by attatching a ballon to the barrel and looking for it to inflate some. Unfortunately I am not aware of anyone currently building replacement poppets. Maybe contacting Pyramid Air or Air Venturi will help locate a replacement poppet. Good luck to ya.
No leak through the barrel, I checked.
 
I have 2 Nova Liberty in action now and another one which I sold.

I attached the schematic for the Nova Liberty..

If my Liberties leaked it was usually from the regulator block.
There is a very small o'ring there which broke.
The regulator is on page 10.
The o'ring which gave me problems is part number 6 on page 10.

In you case it may be different.
You need to identify where the leak is coming from.
You can fill the airgun and listen or touch the areas where the air is coming from.

View attachment NovaLibertySchematic.pdf