New impact stuck barrel.

Hair dryer won't hurt to rule out the chance of loc-tite or similar adhesion wasn't applied to secure the barrel. I just wouldn't tug or rotate with much force until you get it figured out! I have 0 clue about the fx impact barrel but from my knowledge they use a thimble. I am guessing barrel screws into thimble, but it may just press in and be retained by said screw idk. I would worry about doing damage to the transfer port that is on the thimble side of it all so without the gun dissembled I would take caution with how much force is applied in an attempt to remove. GL.


 
Hi,

After removing the thumb screw the barrel should just slide out. The barrel could be unlubed and stuck on the orings that hold it at the action and valve blocks so more effort may be needed to slide it out, however it should not need more than hand effort to remove. 

The transfer port on the barrel is brass, and easily damaged. Sometimes when inserting the barrel and securing the thumb screw people then play with the shroud. Removing and inserting the shroud while not properly securing the thumb screw cause the barrel to rotate against the locating pin inside the valve block damaging the transfer port.

Now you try to remove, the brass is deformed and the locating pin is embedded in the transfer port instead of in its groove...

So long story to explain but if you remove the thumb screw and try to rotate the barrel it may return the locating pin to the correct position to then remove the barrel.

If you can’t rotate or slide out the barrel then you better PM me as my post is too long already:)
 
Thanks guys, I removed it with a help of friend, we pulled the barrel while rotating. The brass got marks and scratches from rotating but it still work. We could not get it out by just pulling. The housing has a small scratch but fortunately all works in perfect condition.

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The transfer port got damaged by me after we removed the barrel. The gun came with 5.5 ST barrel and the dealer gave me 5.5 STX as a limited offer. I was not so careful with the old barrel and I damaged the transfer port when I removed the shroud. The shroud got stuck when we tried to twist and pull the barrel. We gouged the transfer port during the process. I sanded and smoothed the brass piece. It worked perfectly when I tried it.