Franklin Armory BFSIII CZ S1 Induce Operation:Secure –Won't fireplace.Semi – Fires one round for each pull.Binary – Fires one round on pull and one round on launch.* Ambidextrous Safety Selector.Will In good shape most CZ Scorpion firearmsAmbidextrous Basic safety SelectorLaunch round may be canceled by just transferring our Patented selector