Franklin Armory BFSIII CZ S1 Result in Operation:Risk-free –Will never fireplace.Semi – Fires 1 spherical per pull.Binary – Fires 1 spherical on pull and one spherical on release.* Ambidextrous Safety Selector.Will Healthy most CZ Scorpion firearmsAmbidextrous Basic safety SelectorRelease round can be canceled by just relocating our Patented