PISTOL: ABC RIFLE COMPANY MODEL ABC-15 PISTOL IMPORTED BY ABC, SERIAL NUMBER 77-6734, SEMI - AUTOMATIC, 5.56, BLUE, CASE NOT INCLUDED, 7 Notes: ABC - American Built Custom ABC-15 5.56 Description: Type: Semi-automatic rifle chambered in 5.56x45mm NATO. Size: AR-15-pattern platform; overall dimensions and barrel length vary by configuration. Capacity: Uses detachable magazines compatible with the AR-15/M16 pattern. Features: Modern AR-15-style operating system with configurable furniture, sights, and accessory mounting options depending on the specific model. Weight: Varies according to barrel length and configuration. Design: Modular rifle platform based on the AR-15 pattern, allowing different configurations and accessories. Summary: The ABC Rifle Company ABC-15 5.56 is an AR-15-pattern semi-automatic rifle chambered in 5.56x45mm NATO. Because the specific configuration and manufacturer specifications are not clear from the model name alone, dimensions, capacity, and weight can vary.