Upon receiving my new transfer port v2 and pin probe from huma, i noticed there were no installation instructions on how to properly remove the barrel, I did find a few videos on how to remove the barrel watching Viking Airgunners youtube channel that does show him installing this on a dynamic block, but there are subtle differences between his dynamic block and mine. I have an King and he has a Panthera, the spot where he removes the shroud from his Panthera there is a spot for him to use an allen wrench to loosen that locking ring holding the barrel. I don't have the same locking ring, does this ring even hold the barrel down? Or is this just to thread the shroud? Any help would be gladly welcomed. Thank you!