Find parts to a cannon breech 12 ga shotgun?

To find parts for a 12-gauge shotgun breech, you can check with specialized gun parts retailers, both online and in physical stores. Websites like Numrich Gun Parts, Brownells, or MidwayUSA often carry a wide range of shotgun components. Additionally, local gun shops or gunsmiths may have parts or be able to order them for you. Always ensure to verify compatibility with your specific shotgun model when purchasing parts.