Works well on my AR 15. Holds zero well. In order for it to work properly with the pressure switch the tail cap must be screwed down properly and tightly. Laser is clear and bright. To properly zero make sure the alignment marks are set to the proper place as marked under the front cap. Adjust for zero in very small increments, 1/8 turn or less at a time.
Pros: Great price
Cons: could be smaller
This review was written in the old system and had content requirements that are different than reviews written today.