Franklin Armory BFSIII CZ S1 Bring about Operation:Secure –Will not hearth.Semi – Fires 1 round for each pull.Binary – Fires one spherical on pull and one round on launch.* Ambidextrous Protection Selector.Will Healthy most CZ Scorpion firearmsAmbidextrous Safety SelectorRelease round can be canceled by simply relocating our Patented selector