Have used many types of optics over the years and thought I would try this very inexpensive one for an old .22 rifle I have.
While easy to mount on rifle, battery kept coming loose and windage/elevation adjustments could not get impact centered. This rifle, with iron sights, holds 1 inch or less at 25 yards...so I know it is not the rifle...or me.
Threw the unit in the trash can before leaving the range that day.
Pros: Easy to mount on .22 rifle slots
Cons: Battery shakes loose, not enough sight adjustment
This review was written in the old system and had content requirements that are different than reviews written today.