Ensure plenty of BBs are inside magazine before winding. Ample BBs are required to ensure tension can be built up to feed BBs to the top of the magazine.
IMPORTANT: Overwinding the magazine may damage it; Follow directions on the packaging and use responsibly.
Note: If Overwinding has caused spring dislocation, remove rear screws and reinstall spring. As tension spring relies on proper user input, consistent overwinding will create interruptions in functionality.