So I just bought a used xmag a few months ago from a kid and it finally came today. I'm looking carefully over the gun and I notice a spring on the front of the gun that almost acts like a switch. It's on the side without the shot-counter, past the feeding tube about an inch. Now I don't have a manual to see what it does or if it should even be there. Can anyone tell me what this is/does??
Thanks
Thanks

Have you turned on the marker and fired it?
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