Acton Model Railroad Center is easily identified by its large, clear sign as well as the viewable trains set up in the bay window. The shop sells new and used model railroad supplies and buys and sells model railroad collections. Once in the shop, you can view many actively running model trains. There are many new and used trains to choose from, as well as necessary parts and supplies. The staff is extremely knowledgeable and eager to help you locate what you're looking for.