Looking for a good gun level... Any Suggestions?

[Gixxer340]

I would like to put a level on my Marauder for some longer range shooting. I think that the best way to mount it would be to the scope rail and I would like it to stick out to the right side of the gun since I shoot left handed. I shoot with both eyes open so I think it would be easy enough to glance at the level just before the final trigger squeeze. I would also like it to be able to be folded out when in use and folded back against the gun when I am not using it. Does anyone have any suggestions for a level that will meet these requirements?

Thanks in advance
Jeff