I accidentally made two posts.
I was thinking about the design and I realized that the gun will lose almost all of the air through the hole under the slide. the only way I think I can fix this is by making strangely shaped tightly snug in the chamber shells. any ideas?

you can not use a lawnmower engine because it would have to be on its side and no oil would get to it and it would constantly over heat. you need an engine with a horizontal shaft. If you are looking to go 20mph an electric motor will not do you any good. keep in mind how fast the motor spins. if yo...

This is my idea for a double barrel shotgun. I have never made a bb gun before but I plan on making this one. Tell me if you see any flaws or if you have a qeustion.

This is my double barrel shotgun idea. I have never made a bb gun so deal with any flaws. I have not made this gun but I plan on doing so. It probably has some flaws so tell me. If you have any qeustions or don't understand something then ask. This is an incomplete desing so valves may be moved I ma...