A communication connector system is provided for a weapon. The system includes an upper connector configured to be mounted directly to an exterior side surface of an upper receiver of the weapon. The upper connector is configured to be communicatively connected to electronics associated with the upper receiver. The upper connector has a mating interface. The system includes a lower connector configured to be communicatively connected to electronics in a base of the weapon. The lower connector is configured to be mounted directly to an exterior side surface of a lower receiver of the weapon. The lower connector has a mating interface that is mated with the mating interface of the upper connector when the upper receiver is in a closed position. The mating interfaces are physically separable from one another such that the upper receiver is configured to be moved to an open position from the closed position.