Automag CP 2 piece barrel, marked .689, used decent shape, missing one oring and wire detent at breech. Twistlock barrels require a wire or a plastic detent. Please see photos to see them. Some barrels have them included and some do not. Most included orings will need to be replace. If a wire / plastic twistlock detent is included it's likely okay but may need to be replaced at some point in the future. Back half of bore looks good, front half needs a cleaning.