Hard Chrome Boa or JJ Trracer or Maverick barrel, painted, id = ? Bore of barrel seems irregular at breech, might be slightly mishapen. Ranges from .688 to .694. 12 inches, either painted with a metalic purple paint or powdercoated. If from boa it's not too much of strech to say it a smooth powdercoat. End bore is .691-.692. Bore looks great.