I have owned both the red and green magnetic laser bore sighters. They work pretty well. You get a reflective sheet to put up so the laser dot shows up better. I haven't needed the sheet thus far. I have even used it out my back window looking at my neighbor's stockade fence. Just remember to remove the bore sighter before shooting if you're using it at the range!! As I recall, I paid more for the green one as it shows up better. It does show up better. I gave the red one to a shooting buddy. I have no trouble seeing the dot at 50 yards.
