Franklin Armory BFSIII CZ S1 Cause Procedure:Protected –Won't hearth.Semi – Fires 1 round for each pull.Binary – Fires one spherical on pull and one spherical on release.* Ambidextrous Safety Selector.Will Healthy most CZ Scorpion firearmsAmbidextrous Security SelectorLaunch round could be canceled by simply transferring our Patented selector