Hello everybody, I was looking into building another AK but its been 6 or 7 years since I did my last ones. I was wondering who makes good complete receivers with good full heat treats or who makes heftier , thicker flats. I was looking to fab up a receiver that closely mimics the strength and smoothness of a MAK 90 and would like to know if there is anywhere in particular I should start looking. I know there are some die hard AK guys here.