Attach front sights to shotguns and rifle barrels.
What does a Front Sight Attacher do?
Attaches front sights to shotgun and rifle barrels: Secures barrel in vise and screws threaded shank of sight into hole near muzzle. Shears off excess shank extending into bore, using hammer and chisel. Files sheared end of shank with file until edge is smooth with inside of gun barrel. Feels sheared joint and sights through bore or inserts plug gauge into bore to verify smoothness. May drill and tap hole in barrel to accommodate front sight, using drill press and tap.