I pulled the trigger on the one from Stag Arms. In part because of it reportedly being made by CMMG. I'm guessing it 's the same unit as the CMMG Bravo which is the same money. CMMG didn't have any of the 25 round magazines where as Stag Arms did, so I went with them. I do feel that the shipping rates Stag Arms charges is excessive, but so it goes.
Thank you all for your input and help in making my decision.