This is my first time on this forum and I am hoping that someone has a quick fix short of sending the upper back to Aero.
I have built numerous ARs including one Aero Precision AR 308 in 308 cal. I decided that I wanted to build another upper in 6.5 creedmoor. Just received my upper and when I tried to install the charging handle it would not insert. The tangs on the handle don't seem to want to go into the tracks in the upper. The tangs may be hitting the corners at the entrance of the tracks but it is hard to see exactly what it is doing. I tried swapping handles with my other AR 308 and both handles work in the other gun but neither will install in the new upper. I am hoping that someone has encountered this issue in the past. I have always had good luck with Aero up to this point. Thanks.