.....it is still done this way. On the last station of assembly, the gun comes with the barrel torqued. The guy puts the gun in a gun vise and with a padded wrench tightens the barrel to it's 'final' position. No indexing, all done by eyeball. If that last guy's eyeball is not so good, the barrel is off. As far as I know there is no 'inspection' after this. They test fire it and ship it.

__________________
"He was kinda funny lookin'"