I was interested in the light weight of the AEA Element, so I bought one to see what it was like. This lightness is accomplished by using carbon fiber for some of the guns parts. I have also purchased an adapter from DonnyFL to allow use of a moderator. This gun has internal baffles, but is still not back yard friendly. With this setup, the pressure inside the barrel cover blows the cover off the glued aluminum threads that hold it to the receiver. Has anyone else had this problem and a possible fix?