Franklin Armory BFSIII CZ S1 Set off Operation:Safe –Will likely not fire.Semi – Fires 1 spherical per pull.Binary – Fires one round on pull and 1 spherical on release.* Ambidextrous Basic safety Selector.Will Match most CZ Scorpion firearmsAmbidextrous Basic safety SelectorLaunch round is usually canceled simply by moving our Patented select