Abstract: The combination of a modular, low-profile rail designed to readily accept spring-loaded, self-locking mounting brackets and components, and mounting brackets designed to accomodate specialized equipment is disclosed. The rail is channel-shaped with inwardly-turned flanges notched at intervals into circular recesses, and defining an inverted T-shaped slot. The mounting brackets are secured to the rail by compressing the two piece bracket thus exposing a stud which is inserted into a circular recess of the rail. The bracket is then slid to a position between two recesses and then released, the spring force locking it into place.