Franklin Armory BFSIII CZ S1 Trigger Operation:Secure –Will not hearth.Semi – Fires one spherical for every pull.Binary – Fires 1 round on pull and 1 round on launch.* Ambidextrous Safety Selector.Will In shape most CZ Scorpion firearmsAmbidextrous Protection SelectorLaunch spherical could be canceled simply by going our Patented selector out