Besides Numrich where can you find parts for a JC Higgins model 103-19810?

Besides Numrich, you can find parts for a JC Higgins model 103-19810 from online retailers like Brownells and MidwayUSA. Additionally, checking local gun shops or firearms repair shops can yield some parts or guidance on sourcing them. Online auction sites such as GunBroker may also have listings for specific components. Finally, forums and communities dedicated to vintage firearms can be helpful resources for leads on parts and advice.