Questions on Trommel magazine

Hi Hannah.......the proper way to take down the mag is...........first there is a small detent at the top of the mag push this detent in and remove the main spring carefully dont yank it out it has to be "worked" out. next remove the small screw at the base of the mag and then remove the large screw at the back side of the mag. assembly is just in the reverse,but again the main spring has to be "worked" into the mag.......Leo