Hello everyone! So recently I bought a Tokyo Marui Vz61 Scorpion, although used. I noticed that if I pull the main spring it doesn't want to chamber a pellet. The magazine's spring is stressed but not enough, and the fire rate button(?) gets stuck between safety and single-shot, although I can move it between either two and it doesn't want to fire. It only fires when I set it to fully automatic, which it shouldn't have since it's a spring powered gun. I'm new to this and I really have no idea what to do with the gun. It was cheap though, so taking apart and breaking it further wouldn't really be a problem, it just would be nice to be able to use it.