There are two different things. There is a laser sight and there is a red dot scope. The laser sight paints the target with a red dot. The red dot scope shines back into your eye. The red dot scope is legal in Pa if I'm reading the law right. The laser is not.

I love mine. It was a Pollington and a little exspensive. I now have seen others in cabelas and bass pro cheaper and they had crosshairs. I would recomend it and other things I've read say it's great for those who wear glasses and/or have trouble seeing.