Well finally I have had success. I'm honestly not sure what was the final trick as I had hit it with a couple of different kinds of break free lubricants. I tried earlier today and again it wouldn't budge, but I was determined to get this thing off!! I sprayed it again, waited a bit then I heated that thing up until I actually saw a bit of smoke!! Got the strap wrench on it, gave it a really hard turn and it made a really awful groan and started to turn!! Thank god it did because I was about to take a hacksaw to that thing!! I attached the finished product. Much better maneuverability with th 20" barrel and the increased mag is the cats meow. Now to fix the old mag tube and sell it and the barrel to fund the stock I want to buy!!