AR-15 Jig - 80% Receivers
Product Review (submitted on February 1, 2019):
I bought this jig from my buddy who never used it. The fatal flaw with this jig is that there's nothing bridging the bottom and only 2 little cap screws hold everything in place. When you tighten the jig into the vise on the table of my milling machine, the sides deflect in from the squeeze. If you try to tighten the vise less to try to minimize the deflection, the entire jig and lower assembly will move around in the vise while you're trying to mill. I ruined my first lower last night because of the inability to clamp this thing solid to the table.