Firearm simulators are disclosed. In embodiments, a firearm simulator includes a processor, a memory module, a trigger unit that outputs a trigger output signal, a magazine sensor that outputs a magazine sensor output signal, an optoelectronic output device, an optoelectronic sensor, and a wireless communication device. In embodiments, the firearm simulator determines whether a trigger prep event has occurred, determines whether a trigger break event has occurred, and transmits the trigger prep event and the trigger break event with the wireless communication device. In embodiments, the optoelectronic output device is activated when a trigger break event has occurred and a simulated round is available to be fired. In embodiments, a firearm simulator wirelessly transmits information, such as magazine insertion events, magazine ejection events, trigger break events, and trigger prep event to a computing device that displays information pertaining to the received information.