A point of interest...all aluminum adapters are not created equal. Most are a poor grade of aluminum, Magnus makes some that are 7075 and MUCH stronger. In fact Magnus started making them because they were disgusted with the strength of the other adapters commonly available, which they had been using prior to making their own.
Steel is even stronger, a great choice if you have a set up that can handle the weight.
JB weld, epoxy, power bond, ferrule tite will all work just fine for installation.