Copied and paste from Doc's site... As far as I know an seen on his website he does not sell Carbon Fiber uppers. ac-FSO $220 Complete Fiberglass shaft Just transfer your handle, bungee knuckle, and arm cuff over to this fiberglass rod and take some weight off. Rather than having the upper part of your detector shaft being metal, this gives you a heavy duty fiberglass shaft all the way up to your control box. The more metal you keep away from the coil of your detector the more sensitive the detector is. Comes complete with an extra long heavy duty lower rod, and works with all Minelab lower fiberglass rods. Reference http://www.docsdetecting.com/docsplace/coiltek/coils3.html