Sons of Liberty Gun Works M4 89, Semi-automatic, AR, 223 Remington/556NATO, 13.7 Pinned (16 OAL), NOX Muzzle Device, Liberty Fighting Trigger, Liberty Charging Handle, A5 Buffer System, Anodized Finish, Black, Right Hand, CompMag Compliant Magazine, 10 Rounds, BLEM (Damaged Case) M4-89-13.7-CA-COMP