The thread title is a little misleading. I don't see any barrel shrouds in those pics. I see a couple nice looking compensators and some fake cans, but not a barrel shroud. A barrel shroud is a ventilated cover for the barrel to keep you from burning your hands (ie. mg-42, Winchester model 12 combat shotgun, etc).

I suppose the fake suppressor could be construed as a barrel shroud, but that's not it's primary purpose.

I may be interested in one of the compensators for my 10/22, but the 15-22 is probably getting a PWS FSC556.