Tuning Uragan Compact Shroud Removal ?

Put a heat shield between the barrel and tank or just remove the tank (better) and lightly use a heat gun as suggested by 'enkey'. Don't know if the shroud innards are metal or plastic so be careful with heat.

The collar at the end of the shroud, closest to the receiver body., appears to NOT have a set / grub screw and is only a tolerance fit over the barrel. The shroud appears to have an inner collar that screws onto the barrel and that's all that holds it onto the barrel. Maybe that's too obvious.

Best Of Luck
 
For what it’s worth, the newer shroud, with the obvious stacked sections on the end, has a barrel fitting that threads onto the shroud tube and also threads to the end of the barrel. This fitting is, of course, the first section secured to the shroud tube and then baffles thread to it. At the end of the baffle stack, the threaded 14m x 1.25 end piece threads to the last baffle. It looks like this:

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