Not for the aero bar nut! - UTG Pro AR-15/AR308 Armorer's Multi-Function Combo Wrench

I purchased this to complete my Aero Precision build with the BAR nut. I should have listened to the other reviewers the experts are totally wrong! I did make this work by driving out a few studs studs opposite the one that fits and using a punch in the in place of the removed stud so that I could seat the barrel and torque it. I made this work but it does NOT fit! Screw the warranty for now because I really wanted to finish my build and did not want the inconvenience of the return process wait but I must say that the costumer service is good from past experiences with other purchases!