A firing mechanism includes a hammer, an electrical solid-state full auto sear
positioned to engage the hammer in a first electrical state and to disengage from
the hammer in a second electrical state, and a controller connected to the electrical
solid-state full auto sear for causing the electrical solid-state full auto sear
to change from the first electrical state to the second electrical state. The controller
may include circuitry for causing the electrical solid-state full auto sear to
change from the first electrical state to the second electrical state at a predetermined
rate, a predetermined number of times, or for a predetermined period of time. The
hammer may include a retractable hammer bent for engagement with the electrical
solid-state full auto sear, and the electrical solid-state full auto sear may include
a piezoelectric device.