Comes with BCG and charging handle! Manufacturer: Spike's Tactical Model: Law Enforcement Type: Upper Caliber: 556NATO Caliber: 223 Rem Barrel Length: 16" Finish/Color: Black Type of Barrel: 1:7 Chamber: Chrome Lined Description: Flat Top Fit: AR Rifles Sights: A2 Front Manufacturer Part #: STU5025-M4S