I am selling ptfe lined bhcs barrels on ebay for the MBE QUBD extruder (or any other 6mm threaded hot end). There is a EBAY provided freight forward international option I am trying out as well. $15usd for 25mm length barrels and $17usd for 30mm length barrels plus whatever the shipping costs handled by ebay (free shipping in lower 48 USA).
[www.ebay.com] 25mm
[www.ebay.com] 30mm
Mikie
[www.ebay.com] 25mm
[www.ebay.com] 30mm
Mikie