Franklin Armory BFSIII CZ S1 Trigger Procedure:Safe and sound –Will not hearth.Semi – Fires one round per pull.Binary – Fires 1 spherical on pull and one round on release.* Ambidextrous Basic safety Selector.Will Suit most CZ Scorpion firearmsAmbidextrous Protection SelectorLaunch round may be canceled by simply going our Patented selector aw