Abstract: A stapler which includes an interchangeable staple magazine and combines desk, wall and hand stapler functions. The stapler utilizes a tensioned coil spring completely enclosed within the magazine to force a load of staples toward a staple driver, the spring varying in length less than fifty percent as the load of staples is exhausted. The self-contained nature of the magazine assembly allows space in the head of the stapler above the magazine assembly to be used for storage of spare staple loads. The head, back and base of the stapler are connected by a sliding spring rail, which allows the stapler to staple publication bindings without sacrificing stability, as well as to separate the head from the rail for use of the head as a wall tacking stapler.