Shot Count HPA:
I also got the Air Venturi 13/3000 tank, butt stock and adaptor to use with HPA. I get 10 magazines from 3000 down to 1000 psi. However, with this set up I cannot shoulder the gun as it makes it too long. Without the butt stock you can rest the tank on top of your shoulder though it’s a little goofy for me. I had an extra collapsible butt stock so I rigged that up with a drill, hack saw and some Velcro. It’s not greatest but you can shoulder the gun this way and it’s the same length as the original butt stock. You would think Air Venturi would make the 13/3000 tank with the same threads as their 90 gram co2 tanks. It looks like if you didn’t need the adapter it may not be too long and would work.