Plastic chain barriers provide visual guidance for foot traffic to restrict access, create walkways or queues, and surround hazards. Plastic chains connect between posts and act as lightweight barriers that are quick to collect, move, and store. Receiver posts for plastic chains are freestanding, portable posts that have rings for connecting chains from nearby posts. Plastic chain barrier systems include multiple receiver posts and a chain at the appropriate length for connecting between posts to reduce the need to purchase separate components. Mountable plastic chain barriers attach to walls, racks, or receiver posts to quickly block off an aisle or entryway.