Leshiy2 carbon bottle - what size can fit and what is a valve thread size?

I got a L2 recently and realized that I would need a larger bottle, if possible to source in Canada.

With my FX Impact I am tethering at the range, have not tried the L2 yet how the custom made elbow fitting may work, I don't want to put any stress on that brass fill probe.

I understand that there are different diameter bottles (regardless of a length), what are you using that fits?
 
Correct thread is standard M18. Some options for you that would work. One eBay you can get some 200 or 220 cc tank that will fit well and are only ~$100. Best Fittings in the UK also sells a 220 that will work. 

If you want a 300cc or 350cc I would recommend you get one from Edgun West or EdgunLeshiy.shop as they are optimally sized to fit the Leshiy 2.

If you go up to a 480cc it will interfere with your grip. You can get longer tube parts to increase the LOP but it can get to a put of being awkward to shoot.