Where do you find a trigger guard for a JC Higgins model 103.13?

To find a trigger guard for a JC Higgins model 103.13, you can check online marketplaces like eBay or GunBroker, where used or vintage firearm parts are often sold. Additionally, consider reaching out to specialty gun shops or gunsmiths that focus on vintage firearms, as they may have parts or be able to order them for you. Finally, firearm forums and communities dedicated to vintage guns may provide leads or recommendations for sourcing specific parts.