going CO2

yes yes, I had bought new things for MAG welding.
CO2 bottle which is made-over fire extinguisher, cheaper than new bottle, and you can change empty one for full in shop, without waiting for refill:

small CO2 pressure regulator:

5kg of 0,8mm wire:

nozzle and plug for 0.8mm wire:

then I swapped polarity and checked feeder wheel:

all set:

next time I'll be learning how to weld with CO2 in the process of welding trolley for welder and bottle.
in that case I bought these: