it looks like the TR-1200 drop in, it screws into the bezel with a few threads but there is no other contact with the head, i dont think it will handle heat well.
it is a very nice looking torch but beacuse of the drop in i dont think it would handle long runs so we might be stuck with the TR-3T6 is not a new designed host or will not win any modleing contest but it does good, im not sold on the dry,s yet either...... so ill wait