They (Palmer Pursuit) have been around, too.
No, they are not electronic.
Glen Palmer may or may not have invented the self-cocking mechanism that is employed in the autococker, Sovereign, and Blazer before Bud Orr did. There is some controversy on this. Unquestionably, Orr did a better job of getting his creation into the hands of players.
Palmers does good work. If you haven't heard of them, learn what you can, unless this is the sort of gun-tech-blah-blah that puts you to sleep on the way home from the tournie.