A hand grenade simulator includes a hand grenade simulator housing configured to simulate the appearance of a hand grenade. The hand grenade simulator also includes a trigger mechanism coupled to the hand grenade simulator housing. The hand grenade simulator further includes a timer coupled to the trigger mechanism. The hand grenade simulator additionally includes at least one transmitter coupled to the timer. The transmitter is operable to transmit the first signal simulating a hand grenade blast pattern a first amount of time after activation of the trigger mechanism.