I’m looking for information on propane machine gun simulators, or gas guns. They are basically machine gun mock-ups that make flash and noise by igniting a propane charge with a coil and spark plug. Re-enactors use these and they were used in training when I went through Basic. Not a real firearm, but a fun toy I would think.
Specifically what I’m looking for is plans, schematics, material sources for circuit boards and processors and any info from people who have firsthand knowledge of these guns. Thanks