PISTOL: ABC RIFLE COMPANY MODEL ABC-15 PISTOL, SERIAL NUMBER 77-5889, SEMI - AUTOMATIC, 5.56 NATO, BLACK (MATTE), CASE NOT INCLUDED, 10 INCHES Notes: ABC Rifle Company ABC-15 5.56 NATO Pistol Description: Type: AR-15-pattern firearm chambered in 5.56 NATO and configured as a pistol. Configuration: Compact firearm based on the AR-15 platform. Purpose: Intended for lawful civilian sporting and recreational use. Design: Modular platform with a contemporary configuration. Summary: The ABC Rifle Company ABC-15 5.56 NATO Pistol is an AR-15-pattern firearm chambered in 5.56 NATO and configured as a pistol, intended for civilian sporting and recreational applications.