A connector assembly includes electrical terminals, a connector housing, and a primary lock reinforcement device. The electrical terminals are configured to mate with corresponding electrical terminals along a mating axis of the connector assembly. The connector housing is configured to retain the electrical terminals within terminal cavities defined by a terminal tower disposed within the connector housing. The primary lock reinforcement device is configured to slideably engage the terminal tower and is moveable from a prestaged position to a full staged position. The primary lock reinforcement device has a base and a skirt defining a cavity having a flexible beam disposed within and terminating at a tip. The tip engages a stop in the connector housing in the prestaged position inhibiting a movement of the primary lock reinforcement device along the mating axis. When the electrical terminals are fully seated into the terminal cavities, the electrical terminals disengage the tip from the stop enabling the primary lock reinforcement device to move from the prestaged position to the full staged position.