So, I am in the process of throwing another rifle together. Trying to use an Aero Precision lower but this thing is the worst lower I've ever tried to assemble. For one thing, the magazine catch doesn't protrude far enough into the magwell to properly secure a magazine. Guess I'll have to do a little machine work in that area. Then, when I went to pin the Aero Precision upper I bought to the lower, I find out the pivot pin holes aren't machined square to the receiver. Not only is the pivot pin difficult to push through, but once you get it pinned it cocks the upper off to the side so bad it won't close because the bumpy thing on the rear of the upper receiver where the take down pin goes hits the top of the lower receiver.
Think I might just toss this thing aside and use it for a paper weight and buy a different receiver.
[Rant1]
