Hobby shops, model train stores and miniature manufacturers such as Charles Ro Supply Company, Northeast Narrow Gauge, Colorado Model Structures and Ozark Miniatures sell G scale kits for model train building, as of September 2015. G scale kits are model kits used in large-scale model train setups.
Popular kits may include elements such as train engines and cars, buildings, bridges, landscaping and human figures. Hobby retailers such as Charles Ro Supply Company and Colorado Model Structures offer some G scale kits that require assembly and others that are highly customizable. Most hobby retailers offer online ordering, and some also maintain retail stores.