Abstract: A preloadable, swappable and reloadable cylindrical magazine for rubber band and slingshot guns. Exhausted magazines can be replaced in seconds, allowing extended shooting. The release mechanism of projectiles is self-contained; no trigger as it is understood is required, making it particularly suitable in the design of Gatling guns. Hooks in front and fingers at rear engage energized projectiles. The rotation of the magazine causes fingers to tilt forward and projectiles to free themselves by sliding up the tilted fingers without outside disturbances, assuring the best shooting accuracy ever. A pawl and a ratchet wheel control the rotation of magazines. Depending on how long the pawl is disengaged, single shots or continuous firing is equally easy to execute. The successive firing rate is determined by how fast the magazine can rotate. Modular design allows through combinations of components numerous configurations for different sizes and numbers of elastic bands and various designs of toy guns.