Where can you get a clip for a western field 20ga model M149A?

You can find a clip for a Western Field 20ga model M149A at various places, including local gun shops that specialize in vintage firearms or online retailers such as GunBroker or ArmsList. Additionally, consider checking auction sites or forums dedicated to firearms, where collectors and enthusiasts often sell parts. It may also be worthwhile to contact the manufacturer or look for aftermarket suppliers that cater to older or discontinued models.