Just saw this on Ebay if anyone may be looking for a gun..
Custom Made Semi Enclosed Track Spear Gun- Teak - eBay (item 120613244355 end time Aug-31-10 14:15:03 PDT)
Custom Made Semi Enclosed Track Spear Gun- Teak - eBay (item 120613244355 end time Aug-31-10 14:15:03 PDT)