Originally Posted by
ray1970
I've seen a few out of spec lowers over the last twenty five years. I actually ended up with two of them in recent years. Both of them were Aero Precision. While lots of people seem to love be them and have good luck with them, I personally avoid them. Like you said, everyone makes a lemon occasionally.
I do feel the chances of getting an in-spec receiver from just about any manufacturer are much better than in years past. CNC equipment and processes these days make it difficult to turn out one that isn't right.