Franklin Armory BFSIII CZ S1 Set off Procedure:Harmless –Will not likely fire.Semi – Fires 1 round for each pull.Binary – Fires one round on pull and 1 round on launch.* Ambidextrous Security Selector.Will In shape most CZ Scorpion firearmsAmbidextrous Safety SelectorRelease spherical might be canceled by simply shifting our Patented selector