Question for those that are in the know......I bought the completed uppers from a company out of Texas. They have RRA upper receivers, with Yankee Hill free float quad rails. I notice on mine that the quad rail is loose and wiggles. It appears to me that the barrel nut is not torqued down. I don't have any experience with this and have no tools to correct the problem, but it needs to be corrected. I am assuming my diagnosis is correct, but again not sure. Anyone near Wenatchee with experience and tools that can lend me a hand???