When installing a barrel shroud on the 15-22 with threaded barrel I understand to use a barrel vise block when removing the stock flash hider. However, when installing the the barrel shroud am I to just apply some blue loc-tite and hand tighten the barrel shroud? The inexpensive barrel shroud I am considering purchasing has two flats for a 1" wrench but it seems pretty sketchy and easy to over torque the plastic threads on the upper. Thanks for insight.