A weapon simulator assembly for use by an operator in weapon simulation training includes a simulated weapon and a simulated magazine detachably connected to the simulated weapon at a magazine receiver. A weapon processor is housed in the simulated weapon to monitor the number of rounds of simulated ammunition fired in relation to the simulated magazine. When the simulated magazine, which is identifiable by the weapon processor, is connected to the simulated weapon, the weapon processor will recognize the magazine by connecting with a magazine circuit having updated operating information or by identifying the magazine according to a magnetic signature member. The weapon processor will thereby monitor the number of rounds of simulated ammunition fired by a particular magazine, and disable use of the specific magazine once the simulated magazine has used the predetermined number of simulated rounds of ammunition.