[quote author=aldrin44 link=topic=146.msg1058#msg1058 date=1285287928]
I run one on my open gun. They're pretty much industry standard in that regard. Mine is really easy to adjust, keeps its zero and the battery lasts a long time. When the battery does die, its very easy to change unlike some of the smaller red dots. I've never used one on a rifle or shotgun. I'd also be interested in hearing pros/cons for using them on a long gun.
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What open gun do you have?
Can you post a pic?
I don't have an open gun, but I'm very interested in them.