Franklin Armory BFSIII CZ S1 Cause Operation:Protected –Is not going to fireplace.Semi – Fires 1 round for each pull.Binary – Fires one spherical on pull and 1 round on release.* Ambidextrous Basic safety Selector.Will Healthy most CZ Scorpion firearmsAmbidextrous Safety SelectorRelease round is often canceled by simply shifting our Patented