Franklin Armory BFSIII CZ S1 Set off Procedure:Protected –Will never fire.Semi – Fires 1 round for every pull.Binary – Fires one spherical on pull and 1 round on launch.* Ambidextrous Security Selector.Will Match most CZ Scorpion firearmsAmbidextrous Protection SelectorRelease round can be canceled by simply going our Patented selector away f