I have to agree, the iMRT billet uppers and integral rails are obnoxiously easy to install and sexy as hell. Mine just arrived on Monday and I'm waiting on the Vortex PST and LaRue mount to put rounds down range.

I had the same issue with the 1-1/8" crows foot. I also couldn't find one large enough to fit my torque wrench so I used a calibrated elbow (much like you did) and open end box wrench.

Turned out great!!!