From what I've seen at the local outdoor range, the lasers that could be readily seen on the targets, amplified the "geezer shake" to the point of distraction. I don't want one myself (don't need the bad guy to see how bad I'm shaking

) cause it's distracting. It may be different under duress but I think the night sight on a silhouette is better for me.
Now at home. The Mossberg don't need no stinkin' sights...
Personally, the best use I've found for a laser sight here is off the piece and used to exercise my dogs. They love to chase the dot.
/s