Franklin Armory BFSIII CZ S1 Trigger Procedure:Protected –Won't hearth.Semi – Fires one spherical per pull.Binary – Fires 1 round on pull and 1 spherical on launch.* Ambidextrous Security Selector.Will Healthy most CZ Scorpion firearmsAmbidextrous Safety SelectorRelease round could be canceled by just moving our Patented selector out of Binar