The best six string banjo bridges are by snuffy smith and these six string bridges are only available at BanjoTeacher.com. These are for any six string banjo including Goldtone GT 750, 500, BT 2000, Electric Banjtars, Dean and other models of 6 string banjos. These bridges will make a dramatic improvement in the tone of any guitar/banjo.
Snuffy Smith Style I - Six string banjo bridge - 1/2
Snuffy Smith Style I - Six string banjo bridge - 5/8