Franklin Armory BFSIII CZ S1 Cause Procedure:Harmless –Will not likely fire.Semi – Fires 1 round for every pull.Binary – Fires one spherical on pull and 1 round on release.* Ambidextrous Basic safety Selector.Will Fit most CZ Scorpion firearmsAmbidextrous Security SelectorRelease spherical is usually canceled by simply relocating our Patented