For sale is a Steel potato spud gun barrel made of Structural Tube Pipe 45-7/8" Long 3" OD 2.25" ID 3/8" Width. Up to 200 PSI pressure compressed air, not propellants rated. Great for a potato spud gun. This auction is for the pipe in the picture labeled #9634 This auction is just for ONE pipe, but, as you can see, we have many pipes for sale. Local pickup is always available and free.