Fire Piston

How can I get a piston to fire electronically?
Is there such thing as a piston-mail that is returned or car can anyone help me with a shot of air pistons return to the starting position after cooking? The piston must be high speed.
A "ram electronics" sounds like a linear electric motor. In essence, you have a linear electromagnetic drive a permanent magnet above and down a tube. Bose uses this type of motor vehicle suspension. These devices are not cheap, however.
Fire Piston
Fire Piston











