I've never taken one off, but aren't they threaded and screwed into a tapped hole in the barrel?
The barrel doesn't have a serial number on it...maybe the store would swap out barrels with another one in a box and send the one with the broken bead back to the distributor.
The barrel doesn't have a serial number on it...maybe the store would swap out barrels with another one in a box and send the one with the broken bead back to the distributor.