I put this on my MP15-22. It would show fine indoors. Zeroed it with bore sight. Went to range on heavy overcast day. Would only project 12" in the shade. After 25 round from a 22 the cover to the switch had fell off. I am returning it.
Pros: Easy to Zero
Cons: Will not work in daylight
This review was written in the old system and had content requirements that are different than reviews written today.