Joe, IIRC you already have a Neje A40640 laser that can do 1/8" pretty easily and should actually be pretty easy to hook up on LR4. It’s really a 3-wire laser (the 4th wire is a temperature sensor that you can ignore and leave unconnected). You’d just need a mount of some kind. Several folks here on the forum have Neje A40640 lasers… and they may also have them connected to a Jackpot controller.