Various embodiments of the present invention are directed to a dispenser configured for storing one or more items and dispensing the stored items to authorized users. According to various embodiments, the dispenser generally includes a housing defining an interior portion dimensioned to receive one or more items and a laterally sliding access door comprised of a flexible barrier configured to provide restricted access to items stored within the dispenser. In various embodiments, the dispenser also includes a biasing system configured bias the access door to a closed position.