Seimitsu LS-29 connectors

Does anyone have any experience with Seimitsu LS-29s? I got a few in the mail today for playing a few select spinner games, and noticed it uses a 4 pin connector setup. The pins are much larger than the typical 5 pin connector you'd see on a joystick. It looks as if it's made to receive a specific type of Molex connector, which I haven't been able to find anywhere. I rather not rig up the wires if I don't have to.

Pinout: Pin1: X1, Pin2: +5 Volts, Pin3: GND, Pin4: X2