I have a hunters specialties NON PORTED Undertaker choke tube! it is .665 in diameter. it fits 12 gauge Mossberg 500, winchester 1200 1300 and 1400 and browning invector.
lead shot only
im asking $16 bucks to your door and i pay shipping! paypal only
http://img821.imageshack.us/i/004gk.jpg/