FX Royale Foster Fitting Clearance

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This is my FX Royale port clearance that the female connector will not stay on under pressure.
 
The pressure gauge on my FX Boss was not in the center and when i took it out of the stock the plastic cover came off. I just made the hole bigger and glued the plastic back on. You would think all the stocks would be exactly the same cut out on CNC mill. Just take it out of stock and file or grind out the hole. Keep it round and you will not be able to tell it was enlarged. 
 
"dreuf"If you need to get it perfectly centred :
1) remove the stock
2) unscrew the bottle
3) unscrew a bit he foster fitting until it is perfectly centred

it is fixed :)

Hope it helps
If you have a regulator you need to bleed the regulated pressure inside the action too, keep that in mind. The screw that secures the stock to the action is a bleeding screw that goes all the way to the regulator chamber, by just unscrew that one the air will come out and you will be able to twist the foster. If you don't have a reg this step is not necessary. Cheers