I can't beat this one, about 3.5 ounce with lid, that's a real lid, that will keep pressure in, 750 ml. I searched, and the only 750ml ti pot that weighed less was the old bpl one, but it didn't have a real lid.
The stainless is very thin, and since steel is stronger for any given thickness, this pot is LIGHT.
I found it at a chinese store, they usually had much heavier walled ones, but for some reason they got a batch of these in.
I got this pot to complete my 'ultralight cook kit on a shoe string' cookset, the cookset weighs less than a ti one, and is pretty close in efficiency to my more expensive stuff.
I'm suspicious of the spot welds that held the original handle on, I wouldn't bet on them holding up over time.
The handle itself is very light, but I wanted a folding one so I modified it.
I'll take stainless steel or ti over bpa coated tin cans any day of the week, I believe all steel / aluminum cans have some type of plastic inner coating, don't want to be cooking in that thanks.
Total cost of cookset, complete, depending on if you got the stove cans free from a friend or bought them, 5.50/6.50. No fragile beer cans for pots, real flashing for screen, real pot.