I just bought that Tac Sol complete upper with the suppressor shield thingy on it. It is sweet. If you want to meet up sometime and shoot it, shoot me a pm. There is a place on Gun Broker selling the complete upper for $500, that's where I got mine. I have only shot it to sight in the leupold and its dead on at 125 yards. Haven't shot paper with it yet, I'll get to that this week. We were shooting pieces of clay pigeons to sight it in.

Gunbroker link:

http://www.gunbroker.com/Auction/Vie...Item=355655928