A firearm has a trigger shield configured as a protective loop surrounding at least one switch and the at least one switch actuates the function of the firearm when activated by a finger to start the firing process. The firearm further has at least one receiver, at least one position beam emanating horizontally that determines a position of a finger by the finger blocking or not blocking the position beam, and at least one emitter that propagates a beam of light, the beam of light incident on the at least one receiver. Further, when a finger activates the switch, the firearm activates, and when the finger breaks the beam of light, the firearm discharges.