The principles upon which a gun is assembled are pretty much the same. Either it's going to be tension (spring and plunger), a screw, a pin (solid or roll) by which a gun is held together. If the gun looks like a 1911, it probably comes apart like one.
Make sure the gun is empty and pull back the slide so you can remove the slide stop. Slide the slide forward and off the frame (be sure to capture the spring & plunger so it doesn't go into orbit). Heck, the action may be the camming type lock-up like the Browning Hi-Power instead of the "link" lock-up of the 1911. Anway, remove the grip panels. If it looks like a 1911, it should come apart like one. Star did make a 7.63 carbine pistol version that lacked a grip safety and your 9mm is probably very much the same critter.
