At44-10 air tank

"brookesy"I'll have to check wen I get home but I'm pretty sure your thinking of the bt 65 either that or I have a unique at44-10.... mine is most definitely steel
I have 2 AT44s and the air tubes seem to be aluminum. I've removed the valve to fit a regulator in the 22 cal long and to modify the valve in the 25 short and both of mines seem to be aluminum.