Abstract: The present technology is generally directed to an attachment system for boardsport equipment, a boardsport system including thereof, and a method of using thereof. In various embodiments, the attachment system includes a plurality of attachment rails fixedly attached to an external surface of a watersport board such that the attachment rails project outwardly away from the external surface, an attachment assembly configured to releasably couple to the plurality of attachment rails, and a plurality of locking components each of which is on the attachment plate and configured to slidably couple the attachment plate to one of the plurality of the attachment rails.