Nearly every gunsmith in the country has an account with Brownells
It might be easier to track them where they buy gunsmithing supplies
another wrinkle is the number of AR15 "gunsmiths"
that buy direct from the manufacturers
and assemble rifles from kits
most of this kind of gunsmithing involves instaling pins, springs and hammers
building AR15 rifles from an 80 percent finished lower is another active hobby
http://www.tanneryshop.com/MESSAGEBOARD.html
One gentleman has even reverse engineered the lower
and assembled one using a small table mill, from plate aluminum and bolts
http://www.geocities.com/elmgrove1765/project6/project6.html
and then there is the mujahadeen AR15
http://mujahadeenar15a2.tripod.com/
it's fabricated with only hand tools
none of the above "gunsmiths" are on official gunsmith tallies
but their end product is a functional rifle
-dZ
