Thanks again for the info, guys! I tucked the upper in my vise this morning (mounting the vise was the REAL ordeal though, lol) and had the A2 off in no time. It came off really easily. Then I got my Phantom on, but there was no way to get it to line up properly...the bottom was on the top, 180 degrees off. It took a little bit of umpf to get it around, which I was able to, but I was worried about over torquing it...don't have a t-wrench. I tried and tried, but it would only thread on so that it's always 180 off, which lead me to believe that it was okay to turn it the remaining 180.
Anyway, it looks great and I'm hoping to shoot it soon...if we don't get more snow!!
Also, got a mag coupler, two P-Mags w/windows, and an Ergo grip for CHRISTmas! It looks freakin' sweet now, IMO. I'll post pics once I get my FF Rails on! :twisted: