I recently purchased a Benelli SBE1 and it came with a few chokes that I don't have a need for. All are used but in good condition. All these tubes are for Benelli/Beretta Mobile choke systems and all are 12 gauge.
Prices are TYD.
Briley Extreme Range - $40
Briley Timber N' Teal - $35
Briley Dove Duster - $20
$75 takes all three.
Links to their descriptions:
http://www.briley.com/buckgardnersignatureseriesextremerangeexrchoke.aspx
http://www.briley.com/buckgardnersignatureseriestimberntealchoke.aspx
http://www.briley.com/buckgardnersignatureseriesdovedusterchoke.aspx