Franklin Armory BFSIII CZ S1 Induce Procedure:Protected –Will never hearth.Semi – Fires 1 round per pull.Binary – Fires one round on pull and 1 round on launch.* Ambidextrous Protection Selector.Will In good shape most CZ Scorpion firearmsAmbidextrous Protection SelectorRelease round can be canceled by just transferring our Patented selector