Went to the Knob Creek Machine Gun Shoot last Sat. and picked up a stripped l0wer, parts kit, and a surplus complete A2 upper. Got assembly instructions off the AR15 website. Went together ok except I lost the rear takedown spring and detent. Substituted a piece of wire as a temp fix. Ran 10 rds thru it. 3 inch group at 100 yds. Will go back to Knob Creek for replacements and a few accessories. Very happy with it. My son Chris went with me to the shoot. A BLAST was had by all. Pics to follow if I can ever figure out how.