Very Satisfied
I bought their easy jig and love it. I've milled 2 forged, and 3 billet AR15 lowers with no issues. Next up is a pair of AR10 lowers. Still using my original speed mill bit. I recommend the 80% Arms billet lowers. They are easy to cut, and the bolt catch has an easy to use set screw in place of the hard to install role pin.