Barrel backing out

[red alert]

Does anyone have a problem with their barrels backing out (unscrewing) from the ULE when rapid firing? Is there a simple solution for it?

Thanks in advance.

[CHUCK MEYER]

put a o-ring on your barrel that should help

[alooney11]

I find a bit of teflon tape helps snug my two piece barrels.

[rb211]

I had the same problem. An o-ring fixed it.

[fred1]

i had the same problem a long while ago then i twisted the barrel on harder