Yeah, so if the lever GETS PUSHED, then there was no round or mag in the gun. Remembering to push it is like remembering to take the mag/round out.

I pushed it down to see what it does...gun won't cock with it down...put it back up and plan to never touch it again (same with safety). I just don't like little levers/bars inside my gun, waiting to get bent or whatever. I prefer KISS.