12" barrel sealing piston

[whoa044]

Now that I have your attention, will there ever be one?
It's piston will be made out of carbon nanotubes I'm guessing

[Lockednloaded]

This is a worthless thread. A piston valve can be scaled up or down to any size.

[urgle the danish cow]

This is a worthless thread. A piston valve can be scaled up or down to any size.

yea you are right. what is this for?

[Technician1002]

It should work well with a 10 inch chuckin barrel 100 feet long and a 4,000 gallon chamber.

[MrCrowley]

whoa044,

Don't waste my time.