Where can you find a trigger guard for a ranger 22lr 103-13?

You can find a trigger guard for a Ranger 22LR model 103-13 at various online retailers that specialize in firearm parts, such as Brownells or MidwayUSA. Additionally, checking auction sites like GunBroker or eBay may yield results from individual sellers. Local gun shops or gunsmiths may also have the part or be able to order it for you. Lastly, consider reaching out to manufacturers or firearm forums for specific leads on parts availability.