Hey guys, I know a few people in the past have had this issue and I can't recall the solution. But I have a customer who removed his factory extendable shroud from the barrel and it looks as though the smooth twist liner is sticking out of the barrel. I recall someone saying you had to apply loctite somewhere and put it back into the factory shroud. Wait for it to dry then unscrew and it will no longer show. Does anyone know where to apply the loctite?