16 inch threaded heavy barrel. This was my hog hunting rifle. Shoots both supersonic and subsonic very well. I've switched to an AR because I do more stalk hunting now than sitting over feeders.
Bump for a great rifle. I have this model in 308 and it is by far my most accurate rifle I own. Shoots better than my Sako or Kimber and I have done nothing other than break the barrel in with cleaning. All of the stock AAC models come threaded.