DESCRIZIONE
A quick-release retainer bracket for mounting objects to a platform, has a base plate enclosing a pocket in a center thereof, and a pair of retainer plates positionable on top of said base plate on opposed sides thereof, the base plate and retainer plates mountable on a platform with the retainer plates moveable over the base plate from a retracted position in which the retainer plates are partially overlapping a pocket to an extended region in which the retainer plates do not overlap the pocket.