Franklin Armory BFSIII CZ S1 Cause Operation:Harmless –Is not going to fireplace.Semi – Fires one round for every pull.Binary – Fires 1 spherical on pull and one spherical on launch.* Ambidextrous Security Selector.Will Suit most CZ Scorpion firearmsAmbidextrous Protection SelectorLaunch spherical might be canceled by simply going our Patente