SME Chamber Safety Flag Large. Fits into the chamber of a semi-auto pistol rifle or shotgun to indicate the weapon is unloaded and safe during storage or training; End of the flag can be used as a non-marring pin punch to push out takedown/pivot pins on an AR-15/M16 or trigger pins on other guns; The flat edge of the flag head can be used on scope windage and elevation knobs instead of a slot head screwdriver Specifications for SME Chamber Safety Flag: Manufacturer: SME Condition: New Package Contents: SME Chamber Safety Flag SME SME-CFLG-LG: Chamber Safety Flag Large