So it was a CNC machine sold just to doo that operation
for the un-informed masses.
Now this :
Proxxon 37110 MICRO Mill MF 70, Green - Power Milling Machine Accessories - Amazon.com
Scroll down to "questions":
Question:Would this machine be adequate for milling AR-15 lower receivers?
Answer:I don't think it would --the chuck will not let you get a big enough milling bit into it
By Charles R. on June 28, 2015
for the un-informed masses.
Now this :
Proxxon 37110 MICRO Mill MF 70, Green - Power Milling Machine Accessories - Amazon.com
Scroll down to "questions":
Question:Would this machine be adequate for milling AR-15 lower receivers?
Answer:I don't think it would --the chuck will not let you get a big enough milling bit into it
By Charles R. on June 28, 2015