Adding sights is more than just unscrewing a bead. You have to drill and tap the threads exactly inline on both the front and back of the barrel. Plus, you'd have to find the right height sights that match that barrel. Of course, all that assumes your bird barrel has enough meat in the wall thickness to handle screws. By the time you do that, you are better off buying a $75-$100 barrel from Gunbroker.
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