Just out of academic curiosity mind you...
Welcome to Free Republic
I recently built 2 ar15 from 80% lowers and complete kits, the Polymer was real easy and didn’t take long at all and it works perfect, now the aluminum one was a little tougher to do, but with a drill press, an XY vise and the Milling Bit from the polymer kit, and the Drill Press jig, it only took a couple hours.
Both work perfectly
Bflr
I did not see any 1911 receiver blanks. Are they for sell?
I ask because the California high shooter was supposed to have built a 1911 from blanks, all ordered online, at least that is what the Sheriff said?
bkmk
Later