Email nodak spud and get wait 6 months.
It sucks but is worth the wait., after 3 months or so you will entirely forget about it until they call you up and tell you it is ready.>>35249475
The m16 rollout was such a shitshow of armory special parts mix ups it isn't an implausible build. If he wants a tuning fork he can use a tuning fork.>>35249509
I don't normally spoon feed but a1 clones are a good thing:http://whatacountry.com/colt-m16a1-parts-kit.aspxhttp://shop.ar15sport.ihoststores.com/productinfo_v3.aspx?productid=BARREL-20LWT12
McKay or NDS for the lower.
+$100 for grease/barrel wrench/upper block/punch set
You already own a nice vice and torque wrench or know someone who does.
The only remotely difficult part of the build will be barreling it.
Then track down some 20 round mags (nhmtg are good though one I bought had a fucked up but fixable lip).